WHO Model List of Essential Drugs (EDL)
11th edition (Nov. 1999)
by therapeutic group

Explanatory notes      EDL by drug name

1. ANAESTHETICS

1.1 General anaesthetics and oxygen

ether, anaesthetic (1c, 2) inhalation
halothane (2) inhalation
ketamine (2) injection, 50 mg (as hydrochloride)/ml in 10-ml vial
nitrous oxide (2) inhalation
oxygen inhalation (medicinal gas)
*thiopental (2) powder for injection, 0.5 g, 1.0 g (sodium salt) in ampoule
1.2 Local anaesthetics
*bupivacaine (2, 9) injection, 0.25%, 0.5% (hydrochloride) in vial; injection for spinal anaesthesia, 0.5% in 4-ml ampoule to be mixed with 7.5% glucose solution
*lidocaine injection, 1%, 2% (hydrochloride) in vial; injection for spinal anaesthesia, 5% in 2-ml ampoule to be mixed with 7.5% glucose solution; topical forms, 2-4%
*lidocaine + epinephrine (adrenaline) injection 1%, 2% (hydrochloride)+ epinephrine 1:200 000 in vial; dental cartridge 2% + epinephrine 1:80 000
Complementary drug
ephedrine (C) injection, 30 mg/ml in 1-ml ampoule

(To prevent hypotension in spinal anaesthesia during delivery)

1.3 Preoperative medication and sedation for short-term procedures
atropine injection, 1 mg (sulfate) in 1-ml ampoule
chloral hydrate syrup, 200 mg/5-ml
*diazepam (1b) injection, 5 mg/ml in 2-ml ampoule; tablet, 5 mg
*morphine (1a) injection, 10 mg (sulfate or hydrochloride) in 1-ml ampoule
*promethazine elixir or syrup, 5 mg (hydrochloride)/5-ml
2. ANALGESICS, ANTIPYRETICS, NON-STEROIDAL ANTI-INFLAMMATORY DRUGS (NSAIDs), DRUGS USED TO TREAT GOUT AND DISEASE MODIFYING AGENTS IN RHEUMATOID DISORDERS (DMARDs)

2.1 Non-opioids and NSAIDs

acetylsalicylic acid tablet, 100-500 mg; suppository, 50-150 mg
*ibuprofen tablet, 200 mg, 400 mg
paracetamol tablet, 100-500 mg; suppository, 100 mg; syrup, 125 mg/5-ml
2.2 Opioid analgesics
*codeine (1a) tablet, 30 mg (phosphate)
*morphine (1a) injection, 10 mg in 1-ml ampoule (sulfate or hydrochloride); oral solution, 10 mg (sulfate or hydrochloride)/5 ml; tablet, 10 mg (sulfate)
Complementary drug
*pethidine (A) (1a, 4) injection, 50 mg (hydrochloride) in 1-ml ampoule; tablet, 50 mg, 100 mg
2.3 Drugs used to treat gout
allopurinol (4) tablet, 100 mg
colchicine (7) tablet, 500 micrograms
2.4 Disease modifying agents used in rheumatoid disorders (DMARDs)
azathioprine (2) tablet, 50 mg
chloroquine (2) tablet, 100 mg, 150 mg (as phosphate or sulfate)
cyclophosphamide (2) tablet, 25 mg
methotrexate (2) tablet, 2.5 mg (as sodium salt)
penicillamine (2) capsule or tablet, 250 mg
sulfasalazine (2) tablet, 500 mg
3. ANTIALLERGICS AND DRUGS USED IN ANAPHYLAXIS
*chlorphenamine tablet, 4 mg (hydrogen maleate); injection, 10 mg (hydrogen maleate) in 1-ml ampoule
*dexamethasone tablet, 500 micrograms, 4 mg; injection, 4 mg dexamethasone phosphate (as disodium salt) in 1-ml ampoule
epinephrine (adrenaline) injection, 1 mg (as hydrochloride or hydrogen tartrate) in 1-ml ampoule
hydrocortisone powder for injection, 100 mg (as sodium succinate) in vial
*prednisolone tablet, 5 mg
4. ANTIDOTES AND OTHER SUBSTANCES USED IN POISONING

4.1 Non-specific

*charcoal, activated powder
ipecacuanha syrup, containing 0.14% ipecacuanha alkaloids calculated as emetine
4.2 Specific
acetylcysteine (N-) injection, 200 mg/ml in 10-ml ampoule
atropine injection, 1 mg (sulfate) in 1-ml ampoule
calcium gluconate (2, 8) injection, 100 mg in 10-ml ampoule
deferoxamine powder for injection, 500 mg (mesilate) in vial
dimercaprol (2) injection in oil, 50 mg/ml in 2-ml ampoule
*dl-methionine tablet, 250 mg
methylthioninium chloride (methylene blue) injection, 10 mg/ml in 10-ml ampoule
naloxone injection, 400 micrograms (hydrochloride) in 1-ml ampoule
penicillamine (2) capsule or tablet, 250 mg
potassium ferric hexacyano-ferrate(II) ·2H20 (Prussian blue) powder for oral administration
sodium calcium edetate (2) injection, 200 mg/ml in 5-ml ampoule
sodium nitrite injection, 30 mg/ml in 10-ml ampoule
sodium thiosulfate injection, 250 mg/ml in 50-ml ampoule
5. ANTICONVULSANTS/ANTIEPILEPTICS
carbamazepine (10,11) scored tablet, 100 mg, 200 mg
*diazepam (1b) injection, 5 mg/ml in 2-ml ampoule (intravenous or rectal)
ethosuximide capsule, 250 mg; syrup, 250 mg/5-ml
magnesium sulfate injection, 500 mg/ml in 2-ml ampoule
phenobarbital (1b, 11) tablet, 15-100 mg; elixir, 15 mg/5-ml
phenytoin (7, 11) capsule or tablet, 25 mg, 50 mg, 100 mg (sodium salt); injection, 50 mg/ml in 5-ml vial
valproic acid (7, 11) enteric coated tablet, 200 mg, 500 mg (sodium salt)
Complementary drug
*clonazepam (B) (1b) scored tablets 500 micrograms
6. ANTI-INFECTIVE DRUGS

6.1 Anthelminthics

6.1.1 Intestinal anthelminthics

albendazole chewable tablet, 400 mg
levamisole tablet, 50 mg; 150 mg (as hydrochloride)
*mebendazole chewable tablet, 100 mg, 500 mg
niclosamide chewable tablet, 500 mg
praziquantel tablet, 150 mg, 600 mg
pyrantel chewable tablet 250 mg (as embonate); oral suspension, 50 mg (as embonate)/ml
6.1.2 Antifilarials
diethylcarbamazine tablet, 50 mg, 100 mg ( dihydrogen citrate)
ivermectin scored tablet, 3 mg, 6 mg
Complementary drug
suramin sodium (B) (2, 7) powder for injection, 1 g in vial
6.1.3 Antischistosomals and anti-trematode drugs
praziquantel tablet, 600 mg
triclabendazole tablet, 250 mg
Complementary drug
oxamniquine (C) (8) capsule, 250 mg; syrup, 250 mg/5-ml
6.2 Antibacterials

6.2.1 Beta lactam drugs

*amoxicillin (4) capsule or tablet, 250 mg, 500 mg (anhydrous); powder for oral suspension, 125 mg (anhydrous)/5 ml
ampicillin powder for injection, 500 mg, 1 g (as sodium salt) in vial
benzathine benzylpenicillin powder for injection, 1.44 g benzylpenicillin (=2.4 million IU) in 5-ml vial
benzylpenicillin powder for injection, 600 mg (= 1 million IU), 3 g (= 5 million IU) (sodium or potassium salt) in vial
*cloxacillin capsule, 500 mg, 1 g (as sodium salt); powder for oral solution, 125 mg (as sodium salt)/5 ml; powder for injection, 500 mg (as sodium salt) in vial
phenoxymethylpenicillin tablet, 250 mg (as potassium salt); powder for oral suspension, 250 mg (as potassium salt)/5 ml
procaine benzylpenicillin powder for injection, 1 g (=1 million IU), 3 g (=3 million IU)
Restricted Indications
*amoxicillin + *clavulanic acid (D) tablet, 500 mg + 125 mg
ceftazidime (D) powder for injection, 250 mg (as pentahydrate) in vial
*ceftriaxone (D) powder for injection, 250 mg (as sodium salt) in vial
imipenem + cilastatin (D) powder for injection 250 mg (as monohydrate) + 250 mg (as sodium salt), 500 mg (as monohydrate) + 500 mg (as sodium salt) in vial
6.2.2 Other antibacterials
*chloramphenicol (7) capsule, 250 mg; oral suspension, 150 mg (as palmitate)/5 ml; powder for injection, 1 g (sodium succinate) in vial
*ciprofloxacin tablet 250 mg (as hydrochloride)
*doxycycline (5, 6) capsule or tablet, 100 mg (hydrochloride)
*erythromycin capsule or tablet, 250 mg (as stearate or ethyl succinate) ; powder for oral suspension, 125 mg (as stearate or ethyl succinate); powder for injection, 500 mg (as lactobionate) in vial
*gentamicin (2, 4, 7, 11) injection, 10 mg, 40 mg (as sulfate)/ml in 2-ml vial
*metronidazole tablet, 200-500 mg; injection, 500 mg in 100-ml vial; suppository, 500 mg, 1 g; oral suspension, 200 mg (as benzoate)/5 ml
nalidixic acid (8) tablet 250 mg, 500 mg
nitrofurantoin (4, 8) tablet, 100 mg
spectinomycin (8) powder for injection, 2 g (as hydrochloride) in vial
*sulfadiazine (4) tablet, 500 mg
*sulfadiazine (4) injection, 250 mg (sodium salt) in 4-ml ampoule
*sulfamethoxazole + trimethoprim (4) tablet, 100 mg + 20 mg, 400 mg + 80 mg; oral suspension, 200 mg + 40 mg/5 ml; injection, 80 mg + 16 mg/ml in 5-ml and 10-ml ampoules
trimethoprim (8) tablet, 100 mg, 200 mg; injection 20 mg/ml in 5-ml ampoule
Complementary drugs
chloramphenicol (C) oily suspension for injection 0.5 g (as sodium succinate)/ml in 2-ml ampoule
clindamycin (B) (8) capsule, 150 mg; injection, 150 mg (as phosphate)/ml
Restricted Indications
vancomycin (D) powder for injection, 250 mg (as hydrochloride) in vial
6.2.3 Antileprosy drugs
clofazimine capsule, 50 mg, 100 mg
dapsone tablet, 25 mg, 50 mg, 100 mg
rifampicin capsule or tablet, 150 mg, 300 mg
6.2.4 Antituberculosis drugs
ethambutol (4) tablet, 100 mg-400 mg (hydrochloride)
isoniazid tablet, 100 -300 mg
isoniazid + ethambutol (5) tablet, 150 mg + 400 mg
pyrazinamide tablet, 400 mg
rifampicin capsule or tablet, 150 mg, 300 mg
rifampicin + isoniazid (5) tablet, 60 mg + 30 mg; 150 mg + 75 mg; 300 mg + 150 mg; 150 mg + 150 mg

(For intermittent use three times weekly.)

rifampicin + isoniazid + pyrazinamide (5) tablet, 60 mg + 30 mg + 150 mg; 150 mg + 75 mg + 400 mg; 150 mg + 150 mg + 500 mg (For intermittent use three times weekly.)
rifampicin + isoniazid + pyrazinamide + ethambutol tablet, 150 mg + 75 mg +400 mg + 275 mg
streptomycin (4) powder for injection, 1 g (as sulfate) in vial
Complementary drug
thioacetazone + isoniazid (A) (5, 7) tablet, 50 mg + 100 mg; 150 mg + 300 mg
Restricted Indications
Additional reserve second-line drugs for the treatment of multidrug-resistant tuberculosis (MDR-TB) should be used in specialized centres adhering to WHO standards for TB control. (D)
6.3 Antifungal drugs
amphotericin B (4) powder for injection, 50 mg in vial
*fluconazole capsule 50 mg; injection 2 mg/ml in vial; oral suspension 50 mg/5-ml
griseofulvin (7) capsule or tablet, 125 mg, 250 mg
nystatin tablet, 100,000, 500,000 IU; lozenge 100,000 IU; pessary, 100,000 IU
Complementary drugs
flucytosine (B) (4, 8) capsule, 250 mg; infusion, 2.5 g in 250 ml
potassium iodide (A) saturated solution
6.4 Antivirals

6.4.1 Antiherpes

aciclovir (8) tablet, 200 mg; powder for injection 250 mg (as sodium salt) in vial
6.4.2 Antiretrovirals
Adequate resources and specialist oversight are a prerequisite for the introduction of this class of drugs..
nevirapine (8) tablet 200 mg; oral solution 50 mg/5-mL
zidovudine (8) capsules 100 mg, 250 mg; injection, 10 mg/ml in 20-ml vial; oral solution 50 mg/5-ml
Drugs for treatment of HIV/AIDS include nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs). The drugs zidovudine and nevirapine have been shown to reduce or prevent mother-to-child transmission. THIS IS THE ONLY INDICATION FOR WHICH IT IS INCLUDED HERE. Single drug use with zidovudine, except in pregnancy, is now regarded as obsolete, because of the development of resistance. Triple therapy is beyond the budgets of most national drug programmes and therefore HIV/AIDS treatment policies must be decided at country or institutional level.
6.5 Antiprotozoal drugs

6.5.1 Antiamoebic and antigiardiasis drugs

*diloxanide tablet, 500 mg (furoate)
*metronidazole tablet, 200-500 mg; injection, 500 mg in 100-ml vial; oral suspension 200 mg (as benzoate)/5 ml
6.5.2 Antileishmaniasis drugs
*meglumine antimoniate injection, 30%, equivalent to approximately 8.5% antimony, in 5-ml ampoule
pentamidine (5) powder for injection, 200 mg, 300 mg (isetionate) in vial
Complementary drug
amphotericin B (B) (4) powder for injection, 50 mg in vial
6.5.3 Antimalarial drugs

6.5.3.1 For curative treatment

*chloroquine tablet 100 mg, 150 mg (as phosphate or sulfate); syrup, 50 mg (as phosphate or sulfate)/5 ml; injection 40 mg (as hydrochloride, phosphate or sulfate)/ml in 5-ml ampoule
primaquine tablet, 7.5 mg, 15 mg (as diphosphate)
*quinine tablet, 300 mg (as bisulfate or sulfate); injection, 300 mg (as dihydrochloride)/ml in 2-ml ampoule
Complementary drugs
*doxycycline (B) capsule or tablet, 100 mg (hydrochloride)

(For use only in combination with chloroquine.)

mefloquine (B) tablet, 250 mg (hydrochloride)
*sulfadoxine + pyrimethamine (B) tablet, 500 mg + 25 mg
Restricted Indications
artemether (D) injection, 80 mg/ml in 1-ml ampoule
Restricted Indications
artesunate (D) tablet, 50 mg
6.5.3.2 For prophylaxis
chloroquine tablet, 150 mg (as phosphate or sulfate); syrup, 50 mg (as phosphate or sulfate)/5 ml
doxycycline capsule or tablet, 100 mg ( hydrochloride)
mefloquine tablet, 250 mg (as hydrochloride)
proguanil tablet, 100 mg (hydrochloride)

(For use only in combination with chloroquine.)

6.5.4 Anti-pneumocystosis and anti-toxoplasmosis drugs
pentamidine (2) tablet 200 mg, 300 mg
pyrimethamine tablet, 25 mg
sulfamethoxazole + trimethoprim injection 80 mg + 16 mg in 5-ml ampoule
6.5.5. Antitrypanosomal drugs

6.5.5 (a) African trypanosomiasis

melarsoprol (2) injection, 3.6% solution
pentamidine (5) powder for injection, 200 mg, 300 mg (isetionate) in vial
suramin sodium powder for injection, 1 g in vial
Complementary drug
eflornithine (C) injection, 200 mg ( hydrochloride)/ml in 100-ml bottles
6.5.5 (b) American trypanosomiasis
benznidazole (7) tablet, 100 mg
nifurtimox (2, 8) tablet, 30 mg; 120 mg; 250 mg
6.6 Insect repellents
diethyltoluamide topical solution, 50%, 75%
7. ANTIMIGRAINE DRUGS

7.1 For treatment of acute attack

acetylsalicylic acid tablet, 300 -500 mg
ergotamine (7) tablet, 1 mg (tartrate)
paracetamol tablet, 300-500 mg
7.2 For prophylaxis
*propranolol tablet, 20 mg, 40 mg (hydrochloride)
8. ANTINEOPLASTIC, IMMUNOSUPPRESSIVES AND DRUGS USED IN PALLIATIVE CARE

8.1 Immunosuppressive drugs

Adequate resources and specialist oversight are a prerequisite for this class of drugs.
*azathioprine (2) tablet, 50 mg; powder for injection, 100 mg (as sodium salt) in vial
*ciclosporin (2) capsule, 25 mg; concentrate for injection 50 mg/ml in 1-ml ampoule

(For organ transplantation.)

8.2 Cytotoxic drugs
Adequate resources and specialist oversight are a prerequisite for this class of drugs.
asparaginase (2) powder for injection, 10,000 IU in vial
bleomycin (2) powder for injection, 15 mg (as sulfate) in vial
calcium folinate (2) tablet, 15 mg; injection, 3 mg/ml in 10-ml ampoule
chlorambucil (2) tablet 2 mg
chlormethine (2) powder for injection, 10 mg (hydrochloride) in vial
cisplatin (2) powder for injection, 10 mg, 50 mg in vial
cyclophosphamide (2) tablet, 25 mg; powder for injection, 500 mg in vial
cytarabine (2) powder for injection, 100 mg in vial
dacarbazine (2) powder for injection, 100 mg in vial
dactinomycin (2) powder for injection, 500 micrograms in vial
daunorubicin (2) powder for injection, 50 mg (as hydrochloride) in vial
*doxorubicin (2) powder for injection, 10 mg, 50 mg (as hydrochloride) in vial
etoposide (2) capsule, 100 mg; injection, 20 mg/ml in 5-ml ampoule
fluorouracil (2) injection, 50 mg/ml in 5-ml ampoule
levamisole (2) tablet, 50 mg (as hydrochloride)
mercaptopurine (2) tablet, 50 mg
methotrexate (2) tablet, 2.5 mg; powder for injection, 50 mg (as sodium salt) in vial
procarbazine capsule, 50 mg (as hydrochloride)
vinblastine (2) powder for injection, 10 mg (sulfate) in vial
vincristine (2) powder for injection, 1 mg, 5 mg (sulfate) in vial
8.3 Hormones and antihormones
*prednisolone tablet, 5 mg; powder for injection, 20 mg in vial, 25 mg (as sodium phosphate or sodium succinate) in vial
tamoxifen tablet, 10 mg, 20 mg (as citrate)
8.4 Drugs used in palliative care
The WHO Expert Committee on the Use of Essential Drugs recommended that all the drugs mentioned in the WHO publication Cancer Pain Relief: with a Guide to Opioid Availability, second edition, be considered essential. The drugs are included in the relevant sections of the Model List, according to their therapeutic use, e.g. analgesics.
9. ANTIPARKINSONISM DRUGS
*biperiden tablet, 2 mg (hydrochloride); injection, 5 mg (lactate) in 1-ml ampoule
levodopa + *carbidopa (5, 6) tablet, 100 mg + 10 mg; 250 mg + 25 mg
10. DRUGS AFFECTING THE BLOOD

10.1 Anti-anaemia drugs

ferrous salt tablet, 60 mg iron; oral solution, 25 mg iron (as sulfate)/1 ml
ferrous salt + folic acid tablet equivalent to 60 mg iron + 400 micrograms folic acid

(Nutritional supplement for use during pregnancy.)

folic acid (2) injection, 1 mg (as sodium salt) in 1-ml ampoule
hydroxocobalamin (2) injection, 1 mg in 1-ml ampoule
Complementary drug
*iron dextran (B) (5) injection, equivalent to 50 mg iron/ml in 2-ml ampoule
10.2 Drugs affecting coagulation
desmopressin (8) injection, 4 micrograms (acetate)/ml in 1-ml ampoule; nasal spray 10 micrograms/metered dose
heparin sodium injection, 1000 IU/ml, 5000 IU/ml, 20,000 IU (acetate)/ml in 1-ml ampoule
phytomenadione injection, 10 mg/ml in 5-ml ampoule; tablet, 10 mg
protamine sulfate injection, 10 mg/ml in 5-ml ampoule
*warfarin (2, 6) tablet, 1 mg, 2 mg and 5 mg (sodium salt)
11. BLOOD PRODUCTS AND PLASMA SUBSTITUTES

11.1 Plasma substitutes

*dextran 70 injectable solution, 6%
*polygeline injectable solution, 3.5%
11.2 Plasma fractions for specific use
All plasma fractions should comply with the WHO Requirements for the Collection, Processing and Quality Control of Blood, Blood Components, and Plasma Derivatives (Revised 1992). WHO Technical Report Series, No. 840, 1994, Annex 2.
Complementary drugs
*factor VIII concentrate (C) (2, 8) (dried)
*factor IX complex concentrate (coagulation factors, II, VII, IX, X) (C) (2, 8) (dried)
12. CARDIOVASCULAR DRUGS

12.1 Antianginal drugs

*atenolol tablet, 50 mg, 100 mg
glyceryl trinitrate tablet (sublingual), 500 micrograms
*isosorbide dinitrate tablet (sublingual), 5 mg
*verapamil (10) tablet, 40 mg, 80 mg (hydrochloride)
12.2 Antiarrhythmic drugs
*atenolol tablet, 50 mg, 100 mg
digoxin (4, 11) tablet, 62.5 micrograms, 250 micrograms; oral solution 50 micrograms; injection 250 micrograms/ml in 2-ml ampoule.
lidocaine injection, 20 mg (hydrochloride)/ml in 5-ml ampoule
verapamil (8, 10) tablet, 40 mg, 80 mg (hydrochloride); injection, 2.5 mg (hydrochloride)/ml in 2-ml ampoule
Complementary drugs
epinephrine (adrenaline) (C) injection 1 mg (as hydrochloride) in 1-ml ampoule
isoprenaline (C) injection, 20 micrograms (hydrochloride)/ml
*procainamide (B) tablet, 250 mg, 500 mg (hydrochloride); injection, 100 mg (hydrochloride)/ml in 10-ml ampoule
*quinidine (A) (7) tablet, 200 mg (sulfate)
12.3 Antihypertensive drugs
*atenolol tablet, 50 mg, 100 mg
*captopril scored tablet, 25 mg
*hydralazine tablet, 25 mg, 50 mg (hydrochloride); powder for injection, 20 mg (hydrochloride) in ampoule
*hydrochlorothiazide scored tablet, 25 mg
methyldopa (7) tablet, 250 mg
*nifedipine (10) sustained release formulations, tablet 10 mg
*reserpine tablet, 100 micrograms, 250 micrograms; injection, 1 mg in 1-ml ampoule
Complementary drugs
*prazosin (B) tablet, 500 micrograms, 1 mg
*sodium nitroprusside (C) (2, 8) powder for infusion, 50 mg in ampoule
12.4 Drugs used in heart failure
*captopril (4, 11) scored tablet, 25 mg
*digoxin (4, 11) tablet, 62.5 micrograms, 250 micrograms; oral solution, 50 micrograms/ml; injection, 250 micrograms/ml in 2-ml ampoule
dopamine injection, 40 mg (hydrochloride)in 5-ml vial
*hydrochlorothiazide tablet, 25 mg, 50 mg
12.5 Antithrombotic drugs
acetylsalicylic acid tablet, 100 mg
Complementary drug
streptokinase (C) powder for injection, 100,000 IU, 750,000 IU in vial
12.6 Lipid-lowering agents
The WHO Expert Committee on Use of Essential Drugs recognizes the value of lipid-lowering drugs in treating patients with hyperlipidaemia. HMG-CoA reductase inhibitors, often referred to as "statins", are a family of potent and effective lipid-lowering drugs with a good tolerability profile. Several of these drugs have been shown to reduce the incidence of fatal and non-fatal myocardial infarction, stroke and mortality (all causes), as well as the need for coronary by-pass surgery . All remain very costly but may be cost effective for secondary prevention of cardiovascular disease as well as for primary prevention in some very high-risk patients. Since no single drug has been shown to be significantly more effective or less expensive than others in the group, none is included in the Model List; the choice of drug for use in patients at highest risk should be decided at the national level.
13. DERMATOLOGICAL DRUGS (topical)

13.1 Antifungal drugs

benzoic acid + salicylic acid ointment or cream, 6% + 3%
*miconazole ointment or cream, 2% (nitrate)
sodium thiosulfate solution, 15%
Complementary drug
selenium sulfide (C) detergent-based suspension, 2%
13.2 Anti-infective drugs
*methylrosanilinium chloride (gentian violet) aqueous solution, 0.5%; tincture, 0.5%
neomycin sulfate + *bacitracin ointment, 5 mg + 500 IU bacitracin zinc/g
*potassium permanganate aqueous solution 1:10 000
silver sulfadiazine cream, 1%, in 500-g container
13.3 Anti-inflammatory and antipruritic drugs
*betamethasone (3) ointment or cream, 0.1% (as valerate)
*calamine lotion lotion
*hydrocortisone ointment or cream, 1% (acetate)
13.4 Astringent drugs
aluminium diacetate solution, 13% for dilution
13.5 Drugs affecting skin differentiation and proliferation
benzoyl peroxide lotion or cream, 5%
coal tar solution, 5%
dithranol ointment, 0.1%-2%
fluorouracil ointment, 5%
*podophyllum resin (7) solution, 10-25%
salicylic acid solution 5%
urea ointment or cream, 10%
13.6 Scabicides and pediculicides
*benzyl benzoate lotion, 25%
permethrin cream 5%; lotion 1%
13.7 Ultraviolet blocking agents
Complementary drugs
topical sun protection agent with activity against UVA and UVB (C) cream, lotion or gel
14. DIAGNOSTIC AGENTS

14.1 Ophthalmic drugs

fluorescein eye drops, 1% (sodium salt)
*tropicamide eye drops, 0.5%
14.2 Radiocontrast media
amidotrizoate injection, 140-420 mg iodine (as sodium or meglumine salt)/ml in 20-ml ampoule
barium sulfate aqueous suspension
*iohexol injection 140 -350 mg iodine/ml in 5-ml, 10-ml and 20-ml ampoule
*iopanoic acid tablet, 500 mg
*propyliodone oily suspension, 500-600 mg/ml in 20-ml ampoule

(For administration only into the bronchial tree.)

Complementary drug
*meglumine iotroxate (C) solution, 5-8 g iodine in 100-250 ml
15. DISINFECTANTS AND ANTISEPTICS

15.1 Antiseptics

*chlorhexidine solution, 5% ( digluconate) concentrate for dilution
*ethanol solution, 70% (denatured)
*polyvidone iodine solution, 10%
15.2 Disinfectants
*chlorine base compound powder (0.1% available chlorine) for solution
*chloroxylenol solution, 5%
glutaral solution, 2%
16. DIURETICS
*amiloride (4, 7, 8) tablet, 5 mg (hydrochloride)
*furosemide tablet, 40 mg; injection, 10 mg/ml in 2-ml ampoule
*hydrochlorothiazide tablet, 25 mg, 50 mg
spironolactone (8) tablet, 25 mg
Complementary drug
*mannitol (C) injectable solution, 10%, 20%
17. GASTROINTESTINAL DRUGS

17.1 Antacids and other antiulcer drugs

aluminium hydroxide tablet, 500 mg; oral suspension, 320 mg/5 ml
*cimetidine tablet, 200 mg; injection, 200 mg in 2-ml ampoule
magnesium hydroxide oral suspension, 550 mg equivalent to magnesium oxide/10 ml
17.2 Antiemetic drugs
metoclopramide tablet, 10 mg (hydrochloride); injection, 5 mg (hydrochloride)/ml in 2-ml ampoule
*promethazine tablet, 10 mg, 25 mg (hydrochloride); elixir or syrup, 5 mg (hydrochloride)/5 ml; injection, 25 mg (hydrochloride)/ml in 2-ml ampoule
17.3 Antihaemorrhoidal drugs
*local anaesthetic, astringent and anti-inflammatory drug ointment or suppository
17.4 Anti-inflammatory drugs
*hydrocortisone (B) suppository 25 mg (acetate); *retention enema
*sulfasalazine (2) tablet, 500 mg; suppository 500 mg; retention enema
17.5 Antispasmodic drugs
*atropine tablet, 0.6 mg (sulfate); injection, 1 mg (sulfate) in 1-ml ampoule
17.6 Laxatives
*senna tablet, 7.5 mg (sennosides) (or traditional dosage forms)
17.7 Drugs used in diarrhoea

17.7.1 Oral rehydration

oral rehydration salts (for glucose-electrolyte solution) powder, 27.9 g/l; Components to reconstitute 1 litre of glucose-electrolyte solution:

sodium chloride 3.5 g/l;

trisodium citrate dihydrate* 2.9 g/l; potassium chloride 1.5 g/l;

glucose, anhydrous 20.0 g/l

*Trisodium citrate dihydrate may be replaced by sodium bicarbonate (sodium hydrogen carbonate) 2.5g/l. However, as the stability of this latter formulation is very poor under tropical conditions, it is only recommended when manufactured for immediate use.
17.7.2 Antidiarrhoeal (symptomatic) drugs
*codeine (1a) tablet, 30 mg (phosphate)
18. HORMONES, OTHER ENDOCRINE DRUGS AND CONTRACEPTIVES

18.1 Adrenal hormones and synthetic substitutes

*dexamethasone tablet 500 micrograms, 4 mg; injection 4 mg dexamethasone phosphate (as disodium salt) in 1-ml ampoule
hydrocortisone powder for injection, 100 mg (as sodium succinate) in vial
*prednisolone tablet 1 mg, 5 mg
Complementary drug
fludrocortisone (C) tablet, 100 micrograms (acetate)
18.2 Androgens
Complementary drug
testosterone (C) (2) injection, 200 mg (enantate) in 1-ml ampoule
18.3 Contraceptives

18.3.1 Hormonal contraceptives

*ethinylestradiol + *levonorgestrel tablet, 30 micrograms + 150 micrograms
*ethinylestradiol + *levonorgestrel tablet, 50 micrograms + 250 micrograms (pack of four)
*ethinylestradiol + *norethisterone tablet, 35 micrograms + 1.0 mg
levonorgestrel tablets, 750 micrograms (pack of two)
Complementary drugs
*levonorgestrel (B) tablets, 30 micrograms
medroxyprogesterone acetate (B) (7, 8) depot injection, 150 mg/ml in 1-ml vial
norethisterone enantate (B) (7, 8) oily solution, 200 mg/ml in 1-ml ampoule
18.3.2 Intrauterine devices
copper-containing device
18.3.3 Barrier methods
condoms with or without spermicide (nonoxinol)
diaphragms with spermicide (nonoxinol)
18.4 Estrogens
*ethinylestradiol tablet, 10 micrograms, 50 micrograms
18.5 Insulins and other antidiabetic agents
*glibenclamide tablets, 2.5 mg, 5 mg
insulin (soluble) injection, 40 IU/ml in 10-ml vial, 100 IU/ml in 10-ml vial
intermediate-acting insulin injection, 40 IU/ml in 10 ml vial; 100 IU/ml in 10 ml vial (as compound insulin zinc suspension or isophane insulin)
metformin tablet, 500 mg (hydrochloride)
18.6 Ovulation inducers
*clomifene (2, 8) tablet, 50 mg (citrate)
18.7 Progestogens
norethisterone tablet, 5 mg
Complementary drug
medroxyprogesterone acetate (B) tablet, 5 mg
18.8 Thyroid hormones and antithyroid drugs
levothyroxine tablet, 50 micrograms, 100 micrograms (sodium salt)
potassium iodide tablet, 60 mg
*propylthiouracil tablet, 50 mg
19. IMMUNOLOGICALS

19.1 Diagnostic agents

All tuberculins should comply with the WHO Requirements for Tuberculins (Revised 1985). WHO Expert Committee on Biological Standardization Thirty sixth report, WHO Technical Report Series, No. 745, 1987, Annex 1..
tuberculin, purified protein derivative (PPD) injection
19.2 Sera and immunoglobulins
All plasma fractions should comply with the WHO Requirements for the Collection, Processing and Quality Control of Blood, Blood Components and Plasma Derivatives (Revised 1992). WHO Expert Committee on Biological Standardization Forty-third report, WHO Technical Report Series, No. 840, 1994, Annex 2..
anti-D immunoglobulin (human) injection, 250 micrograms in single-dose vial
*antitetanus immunoglobulin (human) injection, 500 IU in vial
antivenom serum injection
diphtheria antitoxin injection, 10,000 IU, 20,000 IU in vial
immunoglobulin, human normal (2) intramuscular injection
immunoglobulin, human normal (2, 8) intravenous injection
*rabies immunoglobulin injection, 150 IU/ml
19.3 Vaccines
All vaccines should comply with the WHO Requirements for Biological Substances..
19.3.1 For universal immunization
BCG
diphtheria
hepatitis B
measles
pertussis
poliomyelitis
tetanus
19.3.2 For specific groups of individuals
influenza
meningitis
rabies
rubella
typhoid
yellow fever
20. MUSCLE RELAXANTS (PERIPHERALLY ACTING) AND CHOLINESTERASE INHIBITORS
*alcuronium chloride (2) injection, 5 mg/ml in 2-ml ampoule
*neostigmine tablet, 15 mg (bromide); injection, 500 micrograms in 1-ml ampoule; 2.5 mg (metilsulfate) in 1-ml ampoule
pyridostigmine bromide (2, 8) tablet, 60 mg; injection, 1 mg in 1-ml ampoule
suxamethonium chloride (2) injection, 50 mg/ml in 2-ml ampoule; powder for injection
Complementary drug
vecuronium bromide (C) powder for injection, 10 mg in vial
21. OPHTHALMOLOGICAL PREPARATIONS

21.1 Anti-infective agents

*gentamicin solution (eye drops), 0.3% (sulfate)
*idoxuridine solution (eye drops), 0.1%; eye ointment, 0.2%
silver nitrate solution (eye drops), 1%
*tetracycline eye ointment, 1% (hydrochloride)
21.2 Anti-inflammatory agents
*prednisolone eye drops, 0.5% (sodium phosphate)
21.3 Local anaesthetics
*tetracaine solution (eye drops), 0.5% (hydrochloride)
21.4 Miotics and antiglaucoma drugs
acetazolamide tablet, 250 mg
*pilocarpine solution (eye drops), 2%, 4% (hydrochloride or nitrate)
*timolol solution (eye drops), 0.25%, 0.5% (as maleate)
21.5 Mydriatics
atropine solution (eye drops), 0.1%; solution 0.5%, 1% (sulfate)
Complementary drug
epinephrine (adrenaline) (A) solution (eye drops), 2% (as hydrochloride)
22. OXYTOCICS AND ANTIOXYTOCICS

22.1 Oxytocics

*ergometrine tablet, 200 micrograms (hydrogen maleate); injection, 200 micrograms (hydrogen maleate) in 1-ml ampoule
oxytocin injection, 10 IU in 1-ml ampoule
22.2 Antioxytocics
*salbutamol (2) tablet, 4 mg (as sulfate); injection, 50 micrograms (as sulfate)/ml in 5-ml ampoule
23. PERITONEAL DIALYSIS SOLUTION
intraperitoneal dialysis solution (of appropriate composition) parenteral solution
24. PSYCHOTHERAPEUTIC DRUGS

24.1 Drugs used in psychotic disorders

*chlorpromazine tablet, 100 mg (hydrochloride); syrup, 25 mg (hydrochloride)/5ml; injection, 25 mg (hydrochloride)/ml in 2-ml ampoule
*fluphenazine decanoate (5) injection, 25 mg (decanoate or enantate) in 1-ml ampoule
*haloperidol tablet, 2 mg, 5 mg; injection, 5 mg in 1-ml ampoule
24.2 Drugs used in mood disorders

24.2.1 Drugs used in depressive disorders

*amitriptyline tablet, 25 mg (hydrochloride)