Sulphonamides weak 1,2 and 3
- Sulphonamides: Prontosil, sulphanilamide, Sulphapyridine, sulphadimidine, Sulfamethoxazole, Sulfadiazine and Sulfafurazole.
- Antimalarials: 4-Aminoquinolines, 8-Aminoquinolines, 9-Amino acridines, Biguanides, Pyrimidine analogues, Mefloquine and Cinchona alkaloids.
- Diuretics: Mercaptomerin, Meralluride, Thiazides, Sprironolactone, Theophylline, Furosemide, Acetazolamide, Ethacrynic acid and Triameterene.
- Antitubercular Drugs: Ethambutol, Isonicotinic acid, Hydrazid, Rifampacin, Thioguanine, Pyrazinamide, cycloserine, Ethunamide, Cytarabine, 5- Flourouracil and Dacarbazine.
- Antiviral Drugs: Acyclovir, Tromantadine Hydrochloride and Ribavirin.
- Immunosuppressant Agents: Azathioprine and Cyclosporin.
- Antibiotics: Penicillins, Cephalosporins, Streptomycin, Chloramphenicol, Tetracyclines, Kanamycin and Erythromycin.