- Dacarbazine
- Dactinomycin
- Dalteparin
- Danaparoid
- Danazol
- Danthron
- Dantrolene
- Dapsone
- Daunorubicin
- Decamethonium
- Deferoxamine
- Delavirdine
- Demecarium
- Demeclocycline
- Desipramine
- Deslanoside
- Desmopressin
- Dexamethasone
- Dexbrompheniramine
- Dexchlorpheniramine
- Dexfenfluramine
- Dextroamphetamine
- Dextromethorphan
- Dextrothyroxine
- Diatrizoate
- Diazepam
- Diazoxide
- Dibenzepin
- Dichloralphenazone
- Dichlorphenamide
- Diclofenac
- Dicloxacillin
- Dicumarol
- Dicyclomine
- Didanosine
- Dienestrol
- Diethylpropion
- Diethylstilbestrol
- Diflunisal
- Digitalis
- Digitoxin
- Digoxin
- Dihydrocodeine Bitartrate
- Dihydrotachysterol
- Diltiazem
- Dimenhydrinate
- Dimethindene
- Dimethothiazine
- Dioxyline
- Diphemanil
- Diphenadione
- Diphenhydramine
- Diphenoxylate
- Dipyridamole
- Dirithromycin
- Disopyramide
- Disulfiram
- Dobutamine
- Docusate Calcium
- Docusate Potassium
- Docusate Sodium
- Dofetilide
- Dolasetron
- Dopamine
- Dothiepin
- Doxazosin
- Doxepin
- Doxorubicin
- Doxycycline
- Doxylamine
- Droperidol
- Dyphylline
