- Cantil
- Capastat
- Capecitabine
- Capital with Codeine
- Capitrol
- Capoten
- Capozide
- Capreomycin
- Capsaicin
- Captopril
- Captopril and Hydrochlorothiazide
- Carac
- Carafate
- Carbachol
- Carbamazepine
- Carbastat
- Carbatrol
- Carbetocin
- Carbex
- Carbidopa, Entacapone and Levodopa
- Carbinoxamine Compound-Drops
- Carbocaine
- Carbocaine with Neo-Cobefrin
- Carbohydrates and Electrolytes
- Carbol-Fuchsin
- Carbolith
- Carbonic Anhydrase Inhibitors
- Carboplatin
- Carboprost
- Carboptic
- Cardec DM
- Cardene
- Cardioquin
- Cardizem
| - Cardizem CD
- Cardizem LA
- Cardizem SR
- Cardura
- Cardura XL
- Cardura–1
- Cardura–2
- Cardura–4
- Cari-Tab
- Carisoprodol
- Carmol HC containing Hydrocortisone Acetate and Urea
- Carmol-HC
- Carmustine
- Carnation Follow-Up Formula
- Carnation Good Start
- Carnation Instant Breakfast
- Carnation Instant Breakfast No Sugar Added
- Carnitor
- Carteolol Oral
- Carter's Little Pills
- Cartia XT
- Carticel
- Cartrol
- Carvedilol
- Cascara Sagrada
- Casec
- Casodex
- Caspofungin
- Castellani Paint Modified (Color)
- Castor Oil
- Cataflam
- Catapres
- Catapres-TTS
| - Catapres-TTS-1
- Catapres-TTS-2
- Catapres-TTS-3
- Catrix Correction
- Catrix Lip Saver
- Caverject
- Cebid Timecelles
- Ceclor
- Ceclor CD
- Cecon
- Cecore 500
- Cedax
- Cedocard-SR
- Cee-500
- CeeNU
- Cefaclor
- Cefadroxil
- Cefadyl
- Cefamandole Nafate Injection
- Cefazolin Sodium Injection
- Cefdinir
- Cefditoren
- Cefepime Injection
- Cefixime
- Cefizox
- Cefobid
- Cefoperazone Sodium Injection
- Cefotan
- Cefotaxime Sodium Injection
- Cefotetan Disodium Injection
- Cefoxitin Sodium Injection
- Cefpodoxime
- Cefprozil
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