| C | ||
| Camphorated Tincture of Opium | Paregoric | |
| Capreomycin | Capastat Sodium | |
| Captopril | Capoten | |
| Captopril & Hydrochlorothiazide | Capozide | |
| Caramiphen Edisylate & | ||
| Phenylpropanoiamine HCI | Tuss-Ornade | |
| Carbamazepine | Tegretol | |
| Carbenicillin Indanyl Sodium | Geocillin | |
| Carbidopa | Lodosyn | |
| Carbidopa & Levodopa | Sinemet | |
| Carboplatin | Paraplatin | |
| Carisoprodol | Soma | |
| Carmustine | BiCNU | |
| Carprofen | Rimadyl | |
| Carteolol HCI | Cartrol | |
| Cefaclor | Ceclor, Ultracef | |
| Cefadroxil | Duricef | |
| Cefarnandol Naftate | Mandol | |
| Cefazolin Sodium | Ancef, Kefzol | |
| Cefixime | Suprax | |
| Cefmetazole Sodium | Zefazone | |
| Cefonicid Sodium | Monocid | |
| Cefoperazone Sodium | Cefobid | |
| Cefotaxime Sodium | Claforan | |
| Cefotetan Disodium | Cefotan | |
| Cefoxitin Sodium | Mefoxin | |
| Cefpodoxime Proxetil | Vantin | |
| Cefprozil | Cefzil | |
| Ceftazidime | Fortaz, Tazidime | |
| Ceftizoxime | Cefizox | |
| Ceftriaxone Sodium | Rocephin | |
| Cefuroxirne | Ceftin, Kefurox, Zinacef | |
| Celiprolol HCI | Selecor | |
| Cephalexin Monohydrate | Kef lex | |
| Cephalothin Sodium | Keflin | |
| Cephapirin Sodium | Cefadyl | |
| Cephradine | Velosef | |
| Chloral Hydrate | Noctec | |
| Chlorambucil | Leukeran | |
| Chloramphenicol | Chloroptic, Chloromycetin | |
| Chlordiazepoxide HCI | Librium, Libritab | |
| Chlordiazepoxide & Amitriptyline | Limbitrol | |
| Chlordiazepoxide HCI & Clidinium bromide | Librax | |
| Chlorhexidine Gluconate | Hibiclens | |
| Chlormezanone | Trancopal | |
| Chloroprocaine HCI | Nesacaine | |
| Chloroquine HCI | Aralen HCI | |
| Chlorothiazide | Diuril | |
| Chloratrianisene | Tace | |
| Chloroxine | Capitrol | |
| Chlorphenesin Carbamate | Maolate | |
| Chlorpheniramine Maleate | Chlor-Trimeton | |
| Chlorpromazine HCI | Thorazine | |
| Chlorpropamide | Diabinese | |
| Chlorprothixene | Taractan | |
| Chlortetracycline HCI | Aureomycin | |
| Chlorthalidone | Hygroton | |
| Chlorthalidone & Reserpine | Regroton | |
| Chlorzoxazone | Parafon Forte DSC, Paraflex | |
| Cholestyramine | Questran | |
| Choline Salicylate | Arthropan | |
| Chorionic Gonadotropin | A.P.L., Pregnyl | |
| Ciclopirox Olamine | Loprox | |
| Cifenline Succinate | Cipralan | |
| Cimetidine | Tagamet | |
| Cinoxacin | Cinobac | |
| Ciprofloxacin | Cipro | |
| Cisapride | Propulsid | |
| Cisplatin | Platinol | |
| Cladribine | Leustatin | |
| Clarithromycin | Biaxin | |
| Clemastine Fumarate | Tavist | |
| Clidiniurn Bromide | Quarzan | |
| Clindamycin | Cleocin | |
| Clobetasol Propionate | Temovate | |
| Clofazimine | Lamprene | |
| Clofibrate | Atromid-S | |
| Clorniphene Citrate | Clomid, Serophene | |
| Clornipramine HCI | Anafranil | |
| Clonazepam | Klonopin | |
| Clonidine HCI | Catapres | |
| Clonidine HCl & Chlorthalidone | Combipres | |
| Clorazepate Dipotassium | Gan-Xene, Tranxene | |
| Clotrimazole | Femcare, Gyne-Lotrimin, Lotrimin, Myclex | |
| Clotrimazole & Betamethasone Dipropionate | Lotrisone | |
| Cloxacillin Sodium | Cloxapen,Tegopen | |
| Clozapine | Clozaril | |
| Colestipol HCl | Colestid | |
| Colfosceril Palmitate, | Exosurf | |
| Colistimethate Sodium | Colymycin M | |
| Colistin Sulfate | Colymycin S | |
| Conjugated Estrogens | Premarin | |
| Corticotropin | Acthar, ACTH | |
| Cortisone Acetate | Cortone | |
| Cosyntropin | Cortrosyn | |
| Cromolyn Sodium | Gastrocrom, Intal, Nasalcrom | |
| Crotarniton | Eurax | |
| Cyanocobalamin | Vitamin B-12 | |
| Cyclandelate | Cyclan, Cyclospasmol | |
| Cyclizine | Marezine | |
| Cyclobenzaprine HCl | Flexeril | |
| Cyclophosphamide | Cytoxan, Neosar | |
| Cycloserine | Seromycin | |
| Cyproheptadine HCI | Periactin | |
| Cysteamine Bitartrate | Cystagon | |
| Cytarabine | Cytosar-U | |
| Cytosine Arabinoside | Cytosar-U |