- Cafergot
- Caffeine + Ergotamine
- Calan
- Capecitabine
- Capoten
- Captopril
- Carafate
- Cardizem
- Carisoprodol
- Casodex
- Cefdinir
- Cefpodoxime
- Ceftin
- Cefuroxime
- Celebrex
- Celecoxib
- Cephalexin
- Cetirizine
- Chlorambucil
- Cialis
- Cilostazol
- Clarithromycin
- Clomid
- Clomiphene
- Clomiphene
- Clopidogrel
- Conjugated Estrogens
- Coumadin
- Cymbalta
- Cyproheptadine

