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Aminoglutethimide
Barbiturates
Carbamazepine
Chloramphenicol
Clemastine
Clonidine
Co-trimoxazole
Danazol
Dapsone
Dihydralazine
Dimenhydrinate
Dipyrone
Ergot derivatives
Erythromycin
Etamsylate
Ethosuximide
Etomidate
Griseofulvin
Ketoconazole systemic
Meprobamate
Mesuximide
Methyldopa
Methysergide
Nalidixic acid
Orphenadrine
Oxcarbazepine
Oxtriphyl
Phenylbutazone
Phenytoin
Primidone
Progestogens more about oral contraception and HRT
Pyrazinamide
Pyrazolone
Sulphonamides
Tolbutamide