- Cabergoline
- Cafergot
- Caffeine + Ergotamine
- Calan
- Candesartan
- Capecitabine
- Capoten
- Captopril
- Carafate
- Cardizem
- Cardura
- Carisoprodol
- Casodex
- Cefadroxil
- Cefdinir
- Cefixime
- Cefpodoxime
- Ceftin
- Cefuroxime
- Celebrex
- Celecoxib
- Celexa
- Cephalexin
- Cetirizine
- Chlorambucil
- Chloramphenicol ophthalmic
- Chloroptic
- Cialis
- Cilostazol
- Cipro
- Ciprofloxacin
- Citalopram
- Clarinex
- Clarithromycin
- Claritin
- Clomid
- Clomiphene
- Clomiphene
- Clomipramine
- Clopidogrel
- Clotrimazole vaginal
- Clozapine
- Clozaril
- Concerta
- Conjugated Estrogens
- Cordarone
- Coumadin
- Crestor
- Cymbalta
- Cyproheptadine
