Drug doses

Last Updated on October 29, 2021 by The Health Master

Drug Dosage As Per IP

NAME OF DRUGINITIAL DOSEMAINTENANCE / REGULAR DOSE Parenteral Dose
Acebutolol HCl “Antihypertensive: initially, 400 mg once daily; increased after 2 weeks to 400 mg twice daily.
Antianginal: initially, 400 mg once daily or 200 mg twice daily; in severe angina, 300 mg thrice daily; maintenance dose, upto 1.2 gm daily. Asantiarrhythmic, 400 mg to 1.2 gm daily, in 2 to 3 divided doses.”
 
Acetazolamide500mg250mg/every 6 Hrs 
Activated Charcoal 50 gm 
Adrenaline  200-500mcg  sc or im
Albendazole Nematodal infestation 400mg, 
Allopurinol100mg Single Dose gradually increased to 300mg daily200 to 400 mg Daily in divided dosage 
Alpha Amylase 200 to 500mg 
Alprazolam 250 to 500 mcg tds 
Amantadine HCl 100 mg daily, increased to 200mg daily in 2 divided dosage 
Amikacin  Upto 1.5gm daily in 2 divided dosage by im,slow iv or inf.
Amiloride HCl5 to 10 mg dailyMaximum 20 mg daily 
Aminocaproic Acid5 gm Orally  and by slow inf,1 to 1.25 gm every Hr. Not more than 30 gm per 24 Hr, 
Aminophylline 100 to 300 mg250 to 500 mg
Amitriptyline HCl50 to 75 mg daily in divided doses50 to 100 mg daily in divide doses 
Ammonium Chloride 3 to 6 gm daily in divided doses 
Amodiaquine400 mg Weekly400 to 600 mg  daily for 3 days 
Amoxycillin Sodium  1 to 3gm daily in divided doses im or iv
Amoxycillin Trihydrate 750mg to 4.5gm daily in divided doses 
Amphotericin B Upto 200mg every 6 hrs.250mcg/Kg body weight daily.increased to 1mg daily or 1.5 mg per Kg on alternate days
Ampicillin 2 to 6 gm daily in divided doses 

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Ampicillin Sodium  1 to 3 gm of Ampicillin daily in divided doses im or iv
Ampicillin Trihydrate 2 to 6 gm daily in divided doses 
Analgin 500mg to 3gm daily in divided doses 
Ascorbic Acid Prophylactic,25 to 75 mg daily;               therapeutic,not less than 250 mg daily,in divided doses 
Aspirin As anlgesic/ antipyretic ,300 to 600 mg four to six times a day;as antirheumatic, 1 to 2 gm four to six times a day,,upto 10 gm dailyasantithrombotic ,75mg daily 
Astemizole “Adults, 10 mg once daily upto 7 days.
Children, 5 mg once daily upto 7 days.”
Atenolol 50 to 100 mg ,daily,in 1 or 2 doses 
Atropine Methonitrate For treatment of congenital hypertrophic pyloric stenosis in infants, 200 to 600 mcg half an hour before feeds. 
Atropine Sulphate400 to 600 mcg four to six times a day sc, im, or iv; as antidote to cholinesterase inhibitors by iv inj. 2 to 4 mg initially, followed by im inj. 2 mg repeated every 5 to 10 minutes.Anticholinergic,orally.250mcg to 2mg daily in single or divided doses400 to 600 mcg four to six times a day sc, im, or iv; as antidote to cholinesterase inhibitors by iv inj. 2 to 4 mg initially, followed by im inj. 2 mg repeated every 5 to 10 minutes.
BCG Vaccine(Freeze Dried)  Prophylactic, ic inj. As a single dose, 0.1 ml

Beclomethasone Dipropionate By inhalation, Adult, 2 inhalations, each of 50 mcg, three or four times a day upto max. of 20 inhalations in 24 hrs                                    Child, 1 or 2 inhalations, each of 50 mcg, three or four times a day upto a max. Of 10 inhalations in 24 hrs. 
Belladonna Dry Extract 15 to 60 mg. 
Benzathine Penicillin Orally, 3 lake Units to 6 lake Units every 6 hrs.3 lake Units to 10 lake Units im                           Prophylactic, by im inj. 12 lake Units every 2 or 3 weeks.
Benzhexol HCl.1 mgGradually increased to a usual maintenance dose of 5 to 15 mg daily in 3 to 4 divided doses. 
Benzylpenicillin Potassium  The equivalent of 1.2 to 2.4 gm of benzylpenicillin daily, in 4 divided doses by im or by slow iv or by infusion.
Benzylpenicillin Sodium  The equivalent of 1.2 to 2.4 gm of benzylpenicillin daily, in 4 divided doses by im or by slow iv or by infusion.
Betamethasone 0.5 to05 mg daily in divided doses. 
Betamethasone Sod. Phosphate  The equivalent of 0.5 to 5 mg of Betamethasone daily, in divided doses. Acute adrenal insufficiency, by iv or im inj., the equivalent of 10 to 80 mg of Betamethasone daily in divided doses.
Bisacodyl 5 to 10 mg daily. 
Bismuth Subcarbonate 1 to 4 gm. 

Bleomycin Sulphate  By inj. The equivalent of 15 to 30 Units of Bleomycin weekly in divided doses.
Bromhexane HCl. 8 to 16 mg three to four times daily. 
Bromocriptine Mesylate The equivalent of 2.5 to 20 mg of Bromocriptine daily in divided doses. 
Bupivacaine HCl  By infiltration anaesthesia, the equivalent of 2 mg of anhydrous Bupivacaine Hcl per Kg body weight.
Buprenorphine HCl Sublingually, upto 400 mcg every 6 to 8 hrs.300 to 600 mcg every 6 to 8 hrs;im or slow iv;
Busulphan2 to 4 mg dailyMaintenance dose, 0.5 to 2 mg daily. 
Caffeine 300 to 600 mg 
Calcium Carbonate 1 to 5 gm. 
Calcium Chloride 1 to 2 gm5 to 10 ml of 10 % w/v solution by slow iv
Calcium Folinate  Upto 120 mg in divided doses over 12 to 24 hrs by im or iv inj. Or infusion followed by 12 to 15 mg im or 15 mg orally every 6 hrs for the next 48 hrs.

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Calcium Gluconate Upto 15 gm daily, in divided doses1 to 2 gm by im or slow iv Inj.
Calcium Lactate Upto 8 gm daily, in divided doses. 
Calcium Levulinate  1 gm once a day, by im or iv. Inj.
Calcium Pantothenate 10 to 100 mg daily, in divided doses 
Captopril12.5 to 50 mg twice dailyUsual maintenance dose, 25 mg twice daily, maximum, 50 mg twice daily. 
Carbamazepine200 mg dailyIncreasing to 1.2 gm daily, in divided doses, in accordance with the needs of the patient. 
Carbenicillin Sodium  By iv inj., the equivalent of 12 to 30 gm of Carbenicillin daily, in divided doses; by im inj., the equivalent of 4 to 8 gm of Carbenicillin daily, in divided doses.
Carbenoxolone Sodium 300 mg daily, in divided doses for 1 week; subsequently, upto 150 mg daily, in divided doses. 
Carbidopa 10 to 25 mg in combination with Levadopa 
CarbimazoleControlling dose, 30 to 60 mg daily, in divided dosesMaintenance dose, 5 to 20 mg daily. 

Castor Oil 5 to 15 ml. 
Cefadroxil 500 mg to 2 gm daily, in divided doses. 
Cefazolin Sodium  1 to 4 gm daily in divided doses, by im or iv or infusion.
Cefotaxime Sodium  “1 to 2 gm of Cefotaxime Every 8 to 12 hrs by im or iv Inj.; By infusion, 1 to 2 gm given over 20 to 60 minutes.
For children, the equivalent of 100 to 150 mg of Cefotaxime per kg body weight daily in 2 to 4 divided doses increasing to 200 mg per kg of body weight daily, if necessary.”
Ceftazidime  1 to 2 gm, every 8 to 12 hrs, by im or slow iv or iv infusion.
Cefuroxime Sodium 250 mg twice daily750 to 1.5 gm, every 6 to 8 hrs, by im or iv or iv infusion.
Cephalexin 1 to 4 gm daily, in divided doses. 
Cephlorididine  1 to 4 gm daily, in divided doses, by iv, im or deep sc inj.
Chlorambucil 100 to 200 mcg per kg of body weight daily for 4 to 8 weeks. 
Chloramphenicol Adult, 1.5 to 3 gm daily, in divided doses; for a child, 25 to 50 mg per kg of body weight daily, in divided doses. 

Chloramphenicol Palmitate Adult, the equivalent of 1.5 to 3 gm of Chloramphenicol daily, in divided doses; for a child, the equivalent of 25 to 50 mg of Chloramphenicol per kg of body weight daily, in divided doses. 
Chloramphenicol Sodium Succinate  The equivalent of 3 to 4 gm of Chloramphenicol daily, in divided doses, by iv inj.
Chlorcalciferol “Rickets; not more than 800 units daily.
For the treatment of rickets &osteomalacia, 5000 to 50000 Units daily
For the treatment of hypocalcaemia andhypoparathyroidism, 50000 to 200000 Units daily.”
200000 to 400000 Units by im inj.
Chlordiazepoxide 10 to 100 mg daily, in divided doses. 
Chloroquine Phosphate “Prophylactic,300 mg once weekly; therapeutic,initial dose, 600 mg followed by a single dose of 300 mg after 6 to 8 hrs and then by a single dose of 300 mg daily for the next 2 to 4 days & in
hepatic amoebiasis 600 mg daily for 5 to 7 days followed by 300 mg to 450 mg daily or twice a week for a week for 2 weeks or longer
By im inj. 160 to 200 mg repeated intervals of 12 hrs until oral therapy is possible as Antimalarial and in hepatic amoebiasis
Chloroquine Sulphate Prophylactic,300 mg once weekly; therapeutic,initial dose, 600 mg followed by a single dose of 300 mg after 6 to 8 hrs and then by a single dose of 300 mg daily for the next 2 to 4 days & in
hepatic amoebiasis 600 mg daily for 5 to 7 days folloved by 300 mg to 450 mg daily or twice a week for a week for 2 weeks or longer
“By im inj. 160 to 200 mg repeated intervals of 12 hrs until oral therapy is possible as Antimalarial and in hepatic amoebiasis
Chlorpheniramine Maleate 4 to 16 mg daily, in divided doses10 to 20 mg, by sc or im inj. Repeated if required; maximum 40 mg in 24 hrs. By slow iv inj. over 1 minute, 10 to 20 mg diluted in the syringe with 5 to 10 ml of blood.
Chlorpromazine HCl As antipsychotic, 75 to 300 mg daily, in divided doses; As antiemetic, 10 to 25 mg every 4 to 6 hrs.As antipsychotic, by im inj. 25 to 50 mg. As antiemetic, by deep im inj. 25 mg initially followed by 25 to 50 mg every 3 to 4 hrs until necessary.
Chlorpropamide 100 to 500 mg daily. 
Chlorthalidone 50 to 200 mg daily. 

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Cholera Vaccine  “For adults and children over 10 years, by sc inj., initial dose, 0.5 ml; second dose, 1.0 ml after an interval of 4 to 6 weeks.
For children 2 to 10 years, initial dose 0.3 ml; second dose 0.3 ml.
For children 1 to 2 years, initial dose, 0.2 ml; second dose 0.2ml.”
Chorionic Gonadotrophin  By im inj, 500 to 5000 units twice weekly or in accordance with the needs and response of the patient.
Ciprofloxacin  100 to 200 mg twice daily by infusion.
Ciprofloxacin HCl The equivalent of 250 to 750 mg of Ciprofloxacin twice daily. 
Cisplastin  By iv infusion, 15 to 20 mg per sq. m. of body surface daily for 5 days.
ClofazimineFor leprosy, for previously untreated patients, 100 mg 3 times weekly;For sulphone- resistant patients, 100 mg 6 times weekly. For the suppression of lepra reactions, 200 mg daily. 
Clonidine HCl 50 to 100mcg thrice daily increased gradually according to the needs & response of the patient; maximum daily dose 1.2 mg.By slow iv inj., 150 to 300 mcg; maximum daily dose 750 mcg.
Cloxacillin Sodium The equivalent of 500 mg of Cloxacillin every 6 hrs, at least 30 minutes before food;By im inj. 250 mg every 4 to 6 hrs; by slow iv inj. or by infusion, 500 mg every 4 to 6 hrs.
Codeine Phosphate 30 to 60 mg every 4 hrs when necessary, to a maximum of 200 mg daily. 
Colchicine1 mgSubsequent doses, 500 mcg every two hrs. 

Colchicine & Probenecid Tabs Colchicine 1 mg & Probenecid, 250 mg twice daily after food. 
Concentrated Glyceryl Trinitrate
Solution”
 Sublingually (as tablet), 300 mcg to 1 mg, repeated as required. 
Cortisone Acetate 25 to 37.5 mg daily, in divided dosesBy im inj. 50 to 400 mg daily, in single or divided doses.
Cyanocobalamin  For treatment of megaloblastic anaemia, by im inj. 1 to 2 mg in divided doses, in the first week. Subsequent doses, 250 mcg weekly until the blood count is normal, maintenance dose, 250 mcg every 3 or 4 weeks.
Cyclophosphamide 100 to 150 mg dailyBy iv inj. 100 to 150 mg daily.
Cyclserine 500 mg to 1 gm daily, in divided doses. 
Cyproheptadine HCl 4 to 20 mg daily, in divided doses. 
Cytarabine  To be determined by the physician.
Danazol 200 to 800 mg daily, in divided doses. 
Dapsone 100 mg daily. 

Dehydroemetine HCl  By deep im inj. 60 to 90 mg daily.
Desferrioxamine Mesylate After gastric lavage, 5 to 10 gm in 50 to 100 ml of liquid;By im inj. 1 to 2 gm in 10 to 20 ml of Water for Inj. every 3 to 12 hrs; by continuous iv infusion, upto 15 mg per kg per hour with a maximum of 80 mg per kg in 24 hrs.
Dexamethasone 500 mcg to 10 mg daily, in divided doses. 
Dexamethasone Sodium Phosphate  In the treatment of adrenal insufficiency, by im or slow iv or infusion, 0.5 to 10 mg. In shock, by iv inj, or infusion, 2 to 6 mg per kg body weight, repeated if necessary after 2 to 6 hrs. In cerebral oedema, by iv inj., 10 mg initially, then 4 mg by im inj. every 6 hrs as required for 2 to 10 days.
Dextromethorphan HCl 10 to 30 mg every 4 to 8 hrs. 
Diazepam In anxiety states, 2 mg thrice daily, increased if necessary to 15 to 30 mg daily, in divided doses; in insomnia associated with anxiety, 5 to 15 mg at bedtimeBy im or slow iv inj. 10 mg repeated if necessary after 4 hrs.
Diclofenac Sodium 25 to 75 mg.25 to 75 mg.
Dicyclomine HCl 30 to 60 mg daily, in divided doses. Oral Solution is required to be diluted; the diluted solution should be freshly prepared. 
Dienoestrol In the treatment of menopausal symptoms, 500 mcg to 5 mg daily; in the treatment of prostate carcinoma and mammary carcinoma, 15 to 30 mg daily; for suppression of lactation, 15 mg thrice daily for 3 days, followed by 15 mg daily fir 6 days. 
Diethylcarbamazine Citrate 150 to 500 mg daily. 

Digoxin“For rapid digitalisation,1to 1.5 mg in divided doses over 24 hrs; for less urgent digitalisation,250 to 500mcg daily;
For paediatric use, 10 to 35 mcg per kg body weight in 3 or 4 divided doses over 24 hrs followed by 4 to 10 mcg per kg body weight daily”
“Maintenance dose, 62.5 to 500 mcg daily.
For paediatric  maintenance dose, 250 mcg once or twice daily.”
By iv infusion inj. 750 mcg to 1 mg.
Diloxanide Furoate 1.5 gm daily, in divided doses. 
Diltiazem HCl30 to 60 mg thrice daily;Maximum 480 mg daily 
Diluted Isosorbide Dinitrate “Sublingually, 5 to 10 mg in angina;
Orally, 30 to120 mg daily, in divided doses.”
 
Diluted pentaerythritol Tetranitrate The equivalent of 20 to 60 mg of pentaerythritol tetranitrate, 3 to 4 times daily. 
Dimercaprol  By im inj., 2 to 3mg per kg of body weight every 4 hrs during the first day and subsequently, in accordance with the needs of the patient.
Dimethicone 40 to 100 mg, four times daily. 
Diphenhydramine HCl 50 to 200 mg daily, in divided doses. 
Diphenoxylate HCl 5 to 30 mg daily, in divided doses. 
Disodium Edetate  By iv inj. 50 mg per kg of body weight, upto a maximum of 3 gm per day.

Disulfiram500 mg as a single dose for 1 to 2 weeksMaintenance dose, 125 to 500 mg daily. 
Dothiepin HClInitially 75 mg daily, in divided doses,Increased gradually, as necessary, to 150 mg daily. 
Doxepin HClInitially, the equivalent of 75 mg of Doxipen daily,in divided dosesIncreased gradually to a maximum of 300 mg daily, in divided doses. 
Doxorubicin HCl  To be determined by the physician in accordance with the needs of the patient.
Doxycycline HClThe equivalent of 200 mg of Doxycycline on the first dayFollowed by 100 mg daily. 
D-Panthenol 250 to 500 mg. 
Dydrogesterone 10 mg twice daily. 
Emetine HCl  By sc or im inj. 30 to 60 mg daily.
Enalapril MaleateInitial, 2.5 to 5 mg dailyMaintenance dose, 10 to 20 mg daily; maximum 40 mg daily. 
Ephedrine 15 to 60 mg. 

Ergocalciferol “Rickets; not more than 800 units daily.
For the treatment of rickets & osteomalacia, 5000 to 50000 Units daily
For the treatment of hypocalcaemia and hypoparathyroidism, 50000 to 200000 Units daily.”
200000 to 400000 Units by im inj.
Ergometrine Maleate 250 mcg to 1 mg;By im inj. 200 to 500 mcg; by iv inj. 100 to 500 mcg.
Ergotamine Tartrate 1 to 2 mg ;By sc or im inj. 250 to 500 mcg.
Erythromycin 1 to 2 gm daily, in divided doses. 
Erythromycin Estolate 1 to 2 gm daily, in divided doses. 
Erythromycin Stearate 1 to 2 gm daily, in divided doses. 
Ethambutol HCl15 to 25 mg per kg of body weight daily, for 2 months,Followed by 15 mg per kg body weight daily. 
Ethinyloestradiol “For menopausal symptoms, 10 to 20 mcg daily continuously or for 21 days, repeated after 7 days, with a progestogen from day 17 to day 26 of cycle if uterus is intact.
For primary amenorrhoea, 10 mcg on alternate days increasing to a maximum of 50 mcg daily continuously with a progestogen for the last 5 days of month.”
 
Ethionamide 250 to 375 mg daily, usually in a three drug regimen with Rifampicin And Dapsone 
Ethionamide 250 to 375 mg daily, usually in a three drug regimen with Rifampicin And Dapsone 

Ethosuximide“500 mg daily, in divided doses;
For child, 50 to 125 mg twice daily;”
“Increasing to 2 gm as necessary
For child, increasing to 250 mg, three to four times daily, as necessary.”
 
Ethyloestrenol 2 to 4 mg daily. 
Fenfluramine HClInitially, 20 mg morning & eveningIncreasing to a maximum of 80 mg twice daily, preferably half hour before breakfast. 
Ferrous Fumarate Prophylactic, 200 mg daily; therapeutic, 400 to 600 mg daily, in divided doses. 
Ferrous Gluconate Prophylactic, 600 mg daily; therapeutic, 1.2 to 1.8 gm daily, in divided doses. 
Ferrous Sulphate Prophylactic, 300 mg; therapeutic 600 to 900 mg daily in divided doses. 
Fludrocortisone Acetate In adrenocortcal insufficiency, 50 to 300 mcg daily. 
Fluphenazine Decanoate  By deep im inj. test dose 6.25 to 12.5 mg, thereafter 4 to 7 days 12.5 to 100 mg repeated as required.
Fluphenazine HCl 1 to 2 mg twice daily, in anxiety states; 2.5 to 10 mg daily in 2 to 3 divided doses in schizophrenia & other psychosesBy im inj. 1.25 to 10 mg daily.
Flurbiprophen 150 to 200 mg, daily in divided doses, increased in acute conditions to 300 mg daily. 

Folic Acid “In the treatment of megaloblastic anaemia associated with folic acid deficiency, 5 to 20 mg daily.
In the prophylaxis of megaloblastic anaemia of , 200 to 500 mcg daily.”
 
Fortified Benzathine Penicillin Inj.  To be determined by the Physician in accordance with the needs of the patient.
Frusemide In oedema, 20 to 40 mg daily; in oliguvria, 250 mg 4 to 6 times daily;By im or slow iv inj. 20 to 50 mg
Furazolidone 400 mg daily, in divided doses. 
Fusidic Acid 500 mg to 1 gm every 8 hrs. 
Gentamicin Sulphate  By im or slow iv inj. over at least 3 minutes or by iv infusion, 2 to 5 mg per kg body weight daily, in divided doses.
Glibenclamide 5 mg daily, adjusted according to response; maximum 15 mg daily, after food. 
Griseofulvin 500 mg to 1 gm daily, in divide doses. 
Guaiphenesin “Adult: 200 to 400 mg every four hrs;
Child aged: 6 to 12 yrs, 100 to 200 mg every four hrs;
Child: 2 to 6 yrs, 50 to 100 mg every four hrs.”
Gugulipid 500 mg, equivalent to 25 mg of gugulsterones, thrice daily. 

Haloperidol 1.5 to 20 mg daily, in divided doses;By im or iv inj. 2 to 10 mg.
Heavy Magnesium Carbonate “As antacid; 300 to 600 mg;
As laxative, 2 to 4 gm.”
 
Heavy Magnesium Oxide “As antacid; 300 to 600 mg;
As laxative, 2 to 4 gm.”
 
Heparin Sodium  Prophylactic, by sc inj. 10000 to 15000 Units daily, in divided doses; therapeutic, by iv inj. 20000 to 50000 Units daily, in divided doses.
Hyaluronidase  By sc or im, inj. 1500 Units either mixed with the inj. fluid or injected into the site before inj. is administered.
Hydralazine HCl 25 to 50 mg twice daily;By slow iv inj. 5 to 20 mg over 20 minutes; may be repeated after about 30 minutes.
Hydrochlorothiazide 25 to 100 mg. 
Hydrocortisone Adrenocortical insufficiency, 20 to 30 mg daily, in divided doses;By im inj. or by slow iv inj. or infusion, 100 to 500 mg, 3 to 4 times in 24 hrs or as required.
Hydrocortisone Acetate  By intra- articular inj. or local infiltration, 5 to 50 mg.
Hydrocortisone Hemisuccinate  By iv inj., the equivalent of 100 to 500 mg of Hydrocortisone 3 to 4 times in 24 hrs or as required.

Hydroxocobalamin  In the treatment of megaloblastic anaemia, by im inj. 1 to 2 mg in divided doses, in the first week; subsequent doses, 250 mcg weekly until the blood count is normal; maintenance dose, 1 mg every two months.
Hydroxyprogesterone Hexanoate  By im inj. 250 to 500 mg weekly during first half of .
Hyoscine Butylbromide 20 mg four times daily;By im or iv inj. 20 mg, repeated after 30 minutes if necessary.
Hyoscine HBr In the prevention of motion sickness, 300 mcg 30 minutes before commencing journey and repeated every 6 hrs;If required; by sc or im inj. for pre anesthetic medication, 200 to 600 mcg.
Ibuprofen 600 mg to 1.2 gm daily, in divided doses, after food. 
Imipramine HCl. 50 to 150 mg daily, in divided doses. 
Indomethacin 50 to 200 mg daily, in divided doses, with food 
Isoniazid 300 mg daily or upto 1 gm twice weekly. 
Isoprenaline HCl.  By iv infusion, 0.5 to 2 mcg per minute, usually administered after dilution with Dextrose Inj.
Isoprenaline Sulphate 5 to 20 mg daily. 

Isoxuprine HCl. As vasodilator, 20 mg 4 times daily;“As vasodilator ,by im inj. 5 to 10 mg upto 4 times daily;
By infusion, initially 100 mcg per minute, increased to 500 mcg per minute if required
As uterine relaxant, by iv infusion, initially 200 mcg to 300 mcg per minute gradually increased to 500 mcg per minute until labor is arrested; subsequently by im inj 10 mg every 3 hrs for 24 hrs, then every 4 to 6 hrs for 48 hrs; then orally, 20 mg 4 times daily.”
Ispaghula Husk 3 to 5 gm. 
Kanamycin  “By im inj. the equivalent of 500 mg to 1 gm of Kanamycin daily, in divided doses
By slow iv infusion, 15 to 30 mg per kg body weight daily, in divided doses, every 8 to 12 hrs.”
Ketamine HCl.  By slow iv inj. the equivalent of 1 to 2 mg of Ketamine per kg of body weight over 60 seconds, repeated according to patients response; by deep im inj. the equivalent of 4 to 10 mg of Ketamine per kg body weight, repeated according to patients response.
Ketoconazole “Adult: 200 mg to 400 mg once daily with food for 14 days
Child: 3 mg per kg body weight daily.”
 
Ketoprofen 100 to 200 mg daily, in 2 to 4 divided doses, with food. 
Labetalol HCl.Initially, 100 mg twice daily with food;Increased at fortnightly intervals to usual dose of 200 mg twice daily; upto 88 mg daily in divided doses; maximum 2.4 gm daily;By iv inj. 50 mg over 1 minute, repeated after 5 minutes, if necessary; maximum 200mg.
Levamisole HCl The equivalent of 150 mg of Levamisole as a single dose. 
LevodopaInitially, 125 to 500 mg daily, in divided doses after meals,Increasing gradually in accordance with the needs of the patient; optimal dose, 1 to 8 gm daily. Usually used in combination with Carbidopa. 
Levonorgestrel As a contraceptive, 150 to 250 mcg in combination with 20 to 50 mcg of ethinyloestradiol daily. 

Light Kaolin 15 to 75 gm. 
Light Magnesium Carbonate “As antacid; 300 to 600 mg;
As laxative, 2 to 4 gm.”
 
Light Magnesium Oxide “As antacid; 300 to 600 mg;
As laxative, 2 to 4 gm.”
 
Lignocaine HCl Local anaesthetic, upto 200 mg as a single dose, when given with adrenaline; as antiarrhythmic, by iv infusion, 50 mg to 100 mg at the rate of 1 to 2 mg per minute. 
Lincomycin HCl The equivalent of 500 mg of Lincomycin every 6 to 8 hrs, 30 minutes before food;By im inj. the equivalent of 600 mg of Lincomycin every 12 to 24 hrs; by slow iv infusion, the equivalent of 600 mg of Lincomycin every 8 to 12 hrs.
Liquid Paraffin 10 to 30 ml. 
Liquid Pariffin Emulsion 10 to 30 ml. 
Lithium Carbonate 250 to 2 gm daily, in divided doses. 
Lomustine 120 to 130 mg per sq. m. body-surface every 6 to 8 weeks. 
Magaldrate 800 mg to 1.6 gm. 

Magnesium Hydroxide “As antacid, 500 to 750 mg;
As laxative, 2 to 4 gm.”
 
Magnesium Sulphate 2 to 16 gm. 
Magnesium Trisilicate 500 mg to 2 gm repeated in accordance with the needs of the patient. 
Malt Extract 4 to 16 ml. 
Mannitol  “As diuretic, by iv infusion, 50 to 200 gm over 24 hrs but not more than 50 gm on one occasion preceded by a test dose of 200 mg per kg of body weight by slow iv inj.
As diagnostic aid, by iv inj. 200 mg per kg body weight in a 15 to 25 % w/v solution.”
Mebendazole For threadworm infestation, 100 mg as a single dose; for other infestations, 100 mg twice daily, for three days. 
Mebeverine HCl 135 mg thrice daily, preferably 20 minutes before meals. 
Meclizine HCl 25 to 50 mg daily. 
Mefenamic Acid 250 to 500 mg thrice daily, after food. 
Megestrol Acetate 40 to 320 mg daily, in divided doses. 

Melphalan 2 to 4 mg daily, for 4 to 6 days;By inj. 50 mg.
Menadione 2 to 10 mg daily2 to 10 mg daily
Mentha Oil 60 to 200 mcl. 
Mercaptopurine 100 to 200 mg daily, in divided doses. 
Metformin HCl 0.5 to 3 gm daily, in divided doses. 
Methdilazine HCl 8 mg two to 4 times daily. 
Methotrexate “Adults: 2.5 to 10 mg;
Child: 2.5 to 5 mg.”
“Adults: 2.5 to 10 mg;
Child: 2.5 to 5 mg.”
Methoxamine HCl  “By im inj. 10 to 15 mg;
By slow iv inj. 5 to 10 mg.”
Methyldopa The equivalent of 0.5 to 3 gm of anhydrous Methyldopa daily, in divided doses. 
Methylergometrine Maleate 250 mcg to 500 mcg;By sc, im or iv inj. 100 mcg to 200 mcg.

Methylprednisolone 4 to 48 mg daily, in divided doses. 
Methylprednisolone Acetate  By deep im inj. 40 to 120 mg.
Metoclopramide HCl The equivalent of 10 to 30 mg of anhydrous Metoclopramide HCl daily,in divided doses;By im or iv inj. the equivalent of 10 mg of anhydrous Metoclopramide HCl.
Metoprolol TartrateInitial dose should not exceed 100 mg daily.100 to 450 mg daily, in divided doses. 
Metronidazole “Trichomoniasis; 200 mg thrice daily, for 7 days
Giardiasis:Adults, 2 gm daily for 3 days
Child, 1 gm daily & for infants 400mg daily.
Amoebiasis: 400 mg thrice daily, for 5 to 10 days”
Initial dose, by iv infusion 15 mg per kg of body weight; subsequent doses, 7.5 mg per kg of body weight upto a maximum of 1 gm every six hrs, for 7 days or longer.
Metronidazole Benzoate Amoebiasis: the equivalent of 400 mg  of  Metronidazole thrice daily, for 5 to 10 days 
Morphine Sulphate 10 to 20 mgBy sc or im inj. 10 to 20 mg.
Nalidixic Acid 2 to 4 gm daily, in divided doses. 
Nandrolone Decanoate  By im inj. 25 to 50 mg, every 3 weeks.
Nandrolone Phenylpropionate  By im inj. 25 to 50 mg, every 3 weeks.

Neostigmine Bromide 15 to 30 mg repeated at suitable intervals; total daily dose, 75 to 300 mg. 
Neostigmine Methylsulphate  By sc or im inj. 1 to 2.5 mg, repeated at suitable intervals; total daily dose, 5 to 20 mg.
Niclosamide 2 gm as a single dose after a light breakfast followed by a purgative 2 hrs later. 
Nicotinamide “Prophylactic: 15 to 30 mg daily;
Therapeutic: 50 to 250 mg daily;”
By iv inj. 50 to 250 mg daily.
Nicotinic Acid “Prophylactic: 15 to 30 mg daily;
Therapeutic: 50 to 250 mg daily;”
 
NifedipineUpto, 30 mg daily, in divided dosesAs per needs of the patient. 
Nitrazepam 5 to 10 mg daily, at bed time. 
Nitrofurantoin 50 to 150 mg four times daily. 
Noradrenaline Bitartrate  By iv infusion, 2 to 20 mcg per minute, as per blood pressure of the patient.
Norethisterone 5 to 20 mg daily, in single or divided doses. 

Norfloxacin 600 mg to 1.6 gm daily, in divided doses. 
Norgestrel As contraceptive: 150 to 300 mcg in combination with 20 to 50 mcg of ethinyoestrdiol daily. 
Nortriptyline HClInitially, 20 to 40 mg daily;Maintenance dose, 30 to 75 mg daily. 
Noscapine 15 to 30 mg three to four times daily. 
Nystatin For alimentary candidiasis, 1000000 to 2000000 Units daily, in divided doses. 
Oestradiol Benzoate  By im inj. 1 to 2 mg daily.
OmeprazoleFor Zollinger-Ellison syndrome, initially 60 mg once daily; usual range 20 to 120 mg daily.“For duodenal & gastric ulcers and for reflux oesophagitis, 20 to 40 mg daily; 
“Ormeloxifene HCl
 ( Centchroman HCl )
 30 mg twice a week, 3 days apart, for three months and thereafter once a week. 
Oxyphenbutazone 200 to 400 mg daily, in divided doses. 
Oxyprenolol HCl“As antihypertensive, initially 80 mg twice daily,
As antiarrhythmic, initially 20 to 40 mg thrice daily, increased as necessary.
“As antihypertensive, increased as required at weekly intervals; maximum 480 mg daily.
As antianginal, 40 to 160 mg thrice daily.”
 

Oxytetracycline 250 to 500 mg every 6 hrs;By im inj. 1 to 2 gm daily.
Oxytetracycline HCl 250 to 500 mg every 6 hrs;By iv infusion. In a con. Of 0.1 % w/v, 1 to 2 gm daily.
Oxytocin  “Induction or enhancement of labor; iv drip infusion of a 5 % Dextrose Solution containg 1 IU Oxytocin per 100 ml.3rd stage labor & puerperium; 5 to 10 IU, im or 5 IU, iv slowly.
Caesarian section; 5 IU intrmurally after delivery.”
Pancreatin 500 mg to 1 gm. 
Papain 120 to 600 mg. 
Paracetamol 500 to 1 gm every 4 to 6 hrs, upto 4 gm daily, in divided doses. 
Paraldehyde  By deep im inj. as a single dose, 5 to 10 ml; by rectal inj. 5 to 10 ml, suitably diluted with physiological saline.
PenicillamineIn rheumatoid arthritis, initial dose, 125 to 250 mg daily before food, increased gradually every 4 to 12 weeks until remision occurs; usual maintenance dose, 500 to 750 mg daily.In poisoning, 500 mg to 2 gm daily, in divided doses or in accordance with the needs of the patient. 
Penicillin G Benzathine   
Pentazocine  By sc, im or iv inj. 30 to 60 mg every 3 to 4 hrs.

Pentazocine HCl 25 to 100 mg, every 3 to 4 hrs after food. 
Pentazocine Lactate  By sc, im or iv inj. 30 to 60 mg every 3 to 4 hrs.
Pepsin 300 mg to 1 gm. 
Pethidine HCl 50 to 150 mg every 4 hrs;By sc or im inj. 25 to 100 mg every 4 hrs; by slow iv inj. 25 to 50 mg every 4 hrs.
Phenformin HCl 50 to 100 mg daily, in divided doses. 
Phenindamine Tartrate 75 to 150 mg daily, in divided doses. 
PhenindioneInitially, 200 to 300 mg;Subsequently 25 to 100 mg daily, as per needs of the patient. 
Pheniramine Maleate 25 to 50 mg daily, in divided doses.By im or slow iv inj 22.5 to 45 mg daily, in divided doses.
Phenobarbitone 60 to 300 mg at night. 
Phenobarbitone Sodium 60 to 300 mg at night.By im or iv inj. 50 to 200 mg, repeated after 6 hrs if necessary; maximum 600 mg daily.

Phenolphthalein 30 to 200 mg. 
Phenoxymethylpenicillin Potasium “Adult: the equivalent of 250 to 500 mg of Phenoxymethylpenicillin every 6 hrs, at least 30 minutes before food.
Child: every 6 hrs upto one year, 62.5 mg; 1 to 5 yrs, 125 mg; and 6 to 12 yrs, 250 mg.”
 
Phentolamine Mesylate  By iv inj. 5 to 10 mg.
Phenylbutazone 100 to 600 mg daily, in divided doses, with or after food. 
Phenylephrine HCl  By sc or im inj. 2 to 5 mg; by slow iv inj 100 to 500 mcg; by iv infusion 5 to 20 mg in 500 ml, adjusted according to response.
Phenytoin SodiumAnticonvulsant: 150 to 300 mg daily, increasing gradually to 600 mg as per needs of the patient;“Status epileptics: by slow iv inj. 10 to 15 mg per kg at a rate not exceeding 50 mg per minute as a loading dose; maintenance doses of 100 mg thereafter every 6 hrs.
Arrhythmia’s: by iv inj. 3.5 to 5 mg per kg at a rate not exceeding 50 mg per minute and repeated once if necessary.”
 
Pholcodine Upto 40 mg daily, in divided doses. 
Phthalylsulphathiazole 2 to 12 gm daily, in divided doses. 
Physostigmine Salicylate  By sc or im inj. 600 mcg to 1.2 mg.
“Piperazine Adipate,
Piperazine Citrate,
Piperazine Hydrate,
Piperazine Phosphate”
 “Adult: The equivalent of 1 to 2gm of Piperazine Hydrate daily, in divided doses. For 7 days;
Roundworm: the equivalent of 4.5 gm of Piperazine Hydrate as a single dose.
Child: For threadworm; the equivalent of 40 mg of Piperazine Hydrate per kg of body weight daily, in divided doses for 7 days.
Roundworm: as a single dose, the equivalent of 120 mg of Piperazine Hydrate per kg of body weight, upto a maximum dose of 4 gm.”
 

Piroxicam 10 to 20 mg daily. 
Potassium Chloride “Prophylactic: 2 to 4 gm daily;
Therapeutic: 10 to 15 gm daily.”
 
Potassium Citrate 4 to 10 gm. 
Potassium Iodide In the preoperative treatment of thyrotoxicosis, 30 to 60 mg; as expectorant, 250 to 500 mg. 
Pralidoxime Chloride  By iv inj. 1 to 2 gm as a 5 % w/v solution, administered over a period of not less than 5 minutes; by im inj. 1 gm initially, followed by 1 to 2 gm further doses if necessary, upto a maximum of 12 gm in 24 hrs.
Prazosin HCl 500 mcg to 1 mg two to three times daily. 
Prednisolone Upto 30 mg daily, in divided doses. 
Prednisone 5 to 60 mg daily, in divided doses 
Primaquine Phosphate The equivalent of 15 mg of Primaquine, once a day for 14 days. 
Probenecid 250 to 500 mg twice daily. 

Procainamide HCl 500 mg to 1.5 gm daily, in divided doses;By slow iv inj. 500 mg to 1.5 gm daily, in divided doses;
Procaine Penicillin  By im inj. 300 to 900 mg daily.
Prochlorperazine Maleate “Antipsychotic; 15 to 100 mg daily ,in divided doses,
Antiemetic: 10 to 30 mg daily, in divided doses.
Prochlorperazine Mesylate  “Antipsychotic; By im inj. 12.5 to 25 mg, twice or thrice daily ,
Antiemetic: By im inj.12.5 mg.
Proguanil HCl
“Promethazine HCl,
 Suppressive, 100 to 300 mg daily. 
Promethazine Theoclate” 20 to 50 mg daily, in single or divided doses.20 to 50 mg daily, in single or divided doses.
Propantheline Br. 15 mg 3 times daily one before meals and 30 mg at night; maximum 120 mg daily. 
Prppranolol HCl 20 mg to 2 gm daily, in divided doses; the initial dose should not exceed 40 mg;By slow iv inj. 3 to 10 mg.
Propylthiouracil 300 to 450 mg daily, in divided doses. 
Propyphenazone 105 to 3 gm daily, in divided doses. 

Protamine Sulphate  By slow iv inj. over a 10 minute period. 1 mg for every 100 Units of heparin remaining in the patient if given within 15 minutes; maximum 50 mg.
Pseudoephedrine HCl 60 mg three to four time daily. 
Pyrazinamide Upto 35 mg per kg of body weight daily, in divided doses. 
Pyrimethamine Used in combination with Sulphadoxine (25 mg ) or Dapsone ( 12.5 mg ) 
Quinalbarbitone Sodium 100 to 200 mg. 
Quinidine Sulphate “Cardiac Arrhythmia’s: 200 mg daily in Three or 4 divided doses.
Artrial fibrillation: 200 to 400 mg every 2 to 4 hrs, upto 3 gm daily.”
 
“Quinine Bisulphate,
Quinine Sulphate”
 “Suppressive, 300 to 600 mg daily;
Therapeutic: 1.2 to 2 gm daily, in divided doses.”
 
Quinine Dihydrochloride “Suppressive, 300 to 600 mg daily;
Therapeutic: 1.2 to 2 gm daily, in divided doses.”
By slow iv inj. 300 to 600 mg.
Quiniodochlor 750 mg to 1.5 gm daily, in divided doses. 
Ranitidine HCl The equivalent of 300 to 600 mg of Ranitidine, in divided doses.By im or slow iv inj. the equivalent of 50 mg of Ranitidine, every 6 to 8 hrs.

Reserpine 500 mcg daily. 
Rifampicin “Adult: 450 to 600 mg daily preferably before breakfast.
Child: upto 20 mg per kg daily to a maximum of 600 mg.”
 
“Salbutamol,
Salbutamol Sulphate”
 6 to 16 mg daily, in divided doses.By sc or im inj. 500 mcg repeated every 4 hrs, if necessary; By slow iv inj, 250 mcg, repeated if necessary.
Salbutamol Sulphate The equivalent of 6 to 16 mg daily, in divided doses.By sc or im inj. 500 mcg repeated every 4 hrs, if necessary; By slow iv inj, the equivalent of 250 mcg, of Salbutamol or by infusion, the equivalent of 3 to 20 mcg of Salbutamol per minute.
Sodium Bicarbonate 1 to 4 gm 
Sodium Citrate 1 to 10 gm 
SodiumDihydrogen Phosphate Dihydrate 2 to 4 gm. 
Sodium Fusidate 1.5 gm daily, in divided doses. 
Sodium Lactate Inj.  By iv infusion at the rate of 5 ml or less per minute.
Sodium Valproate 600 mg to 1.6 gm daily, in divided doses. 

Spironolactone 100 to 200 mg daily, in divided doses. 
Stilboestrol “Menopausal symptoms: 100 mcg to 1 mg daily;
Suppression of Lactation: 5 mg thrice daily for 3 days followed by 5 mg daily for 6 days;
Carcinoma of the prostate and mammary carcinoma, 10 to 20 mg daily.”
 
Streptokinase  By iv infusion, 250000 to 6000000 Units over 30 minutes followed by 100000 Units every hr for upto one week.
Streptomycin Sulphate  By im inj. the equivalent of 500 mg to 1 gm of Streptomycin daily, or at longer intervals.
Succinylcholine Chloride  By iv inj. 20 to 100 mg, as per needs of the patient.
Succinylsulphathiazole 10 to 20 gm daily in divided doses. 
Sulphadiazine3 gm;Subsequent dose, upto 4 gm daily, in divided doses. 
Sulphadimethoxine1 to 2 gm,Subsequent doses 500 mg daily. 
Sulphadimidine“Systemic Infections: 3 gm
UTI: 2 gm”
“Systemic Infections: subsequent doses, upto 6 gm daily, in divided doses
UTI: subsequent doses, upto 4 gm daily in divided doses.”
 
Sulphadimidine Sodium  By im or iv inj. 1 to 5 gm.

SulphadoxineInitially, 2 gmSubsequent doses, 1 to 1.5 gm weekly.By deep iv inj. 2.5 gm initially, followed by 1.5 gm after four days.
Sulphafurazole“Systemic Infections: 3 gm
UTI: 2 gm”
“Systemic Infections: subsequent doses, upto 6 gm daily, in divided doses
UTI: subsequent doses, upto 4 gm daily in divided doses.”
Sulphamethiazole 100 to 200 mg every four to six hrs. 
SulphamethoxazoleInitial dose, 2 gm;Subsequent doses, 1 gm two or three times daily. 
Tamoxifen Citrate The equivalent of 20 to 40 mg of Tamoxifen daily as a single dose or in 2 divided doses. 
Terbutaline Sulphate Upto 15 mg daily, in divided dosesBy sc inj. 250 to 500 mcg, four times a day.
Testosterone Propionate  By im inj. 5 to 25 mg, once or twice weekly.
Tetracycline 250 mg every 6 hrs; increased in severe infections to 500 mg every 6 to 8 hrs. 
Tetracycline HCl 250 mg every 6 hrs; increased in severe infections to 500 mg every 6 to 8 hrs.By im inj. 100 mg every 8 to 12 hrs increased  in severe infections to every 4 to 6 hrs; by iv infusion, 500 mg every 12 hrs; maximum 2 gm daily.
Theophylline  By iv infusion, 2.5 to 5.0 mg of anhydrous Theophylline per kg body weight over a period of 20 minutes.

Thiabendazole Nematode infestation: 1.5 gm twice daily for three days. 
Thiacetazone 150 mg daily. 
Thiopentone Sodium  By iv inj. initially, 100 to 500 mg repeated if necessary after 20 to 30 seconds; maximum dose, 2 gm.
Thiotepa  300 to 400 mcg per kg of body weight at intervals of 1 to 4 weeks.
Thyroxine Sodium 50 to 300 mcg daily 
Tinidazole “Trichomoniasis: 2 gm as a single dose and after 3 to 5 days rest, if necessary.
Giardiasis: 150 mg twice daily for 7 days or as a single dose of 2 gm.
Intestinal amoebiasis: 600 mg as a single dose daily for 2 to 6 days.”
 
Tobramycin  By im or iv inj. 3 to 5 mg per kg daily, in divided doses.
Tocopheryl Acetate “Prophylactic: 5 to 10 mg; 
Tolbutamide 500 mg to 1.5 gm daily as a single dose with breakfast or in divided doses. 
Triamcinolone 2 to 24 mg daily. 

Triamcinolone Acetonide  By deep im inj. 40 to 100 mg.
Triamterene 150 to 250 mg daily, in divided doses. 
Tifluoperazine HCl “Antipsychotic: the equivalent of 2 to 30 mg of Trifluoperazine daily in divided doses.
Antiemetic: the equivalent of 2 to 4 mg of Trifluoperazine daily.”
“By im inj. the equivalent of 1  to 3 mg of Trifluoperazine daily , in divided doses
Antiemetic: by im inj. the equivalent of 2 to 3 mg of Trifluoperazine daily in divided doses.”
Trimethoprim 200 mg twice daily. 
Triprolidine HCl 10 to 20 mg daily, in divided doses. 
Vasopressin Inj.  By sc or im inj. 2 to 20 Units.
Verapamil HCl “Antiarrhythmic: 40 to 120 mg thrice daily,
Antianginal: 80 to 120 mg Thrice daily;
Antihypertensive: 240 to 480 mg daily, in 2 or 3 divided doses;”
By slow iv inj 5 to 10 mg.
Warfarin Sodium 10 to 15 mg. 

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