- Cabazitaxel
- Cabergoline
- Cabotegravir
- Cabozantinib
- Caffeic Acid
- Caffeine
- Calanolide
- Calcifediol
- Calcipotriol
- Calcitriol
- Calcium Gluconate
- Calcium Levofolinate Hydrate
- Camphor
- Camptothecin
- Camylofin
- Canagliflozin
- Candesartan
- Cangrelor
- Capecitabine
- Capmatinib
- Capsaicin
- Carbamazepine
- Carbazochrome
- Carbetocin
- Carbidopa
- Carbinoxamine
- Carboplatin
- Carbovir
- Carfilzomib
- Carglumic Acid
- Cariprazine
- Carisoprodol
- Carmustine
- Carprofen
- Carteolol
- Carvedilol
- Caspofungin
- Catharanthine
- Cedazuridine
- Cefacetrile
- Cefaclor
- Cefadroxil
- Cefalexin
- Cefalonium
- Cefalotin
- Cefazedone
- Cefazolin
- Cefdinir
- Cefditoren Pivoxil
- Cefepime
- Cefetamet
- Cefixime
- Cefoperazone
- Cefotaxime
- Cefotiam
- Cefoxitin
- Cefozopran
- Cefpirome
- Cefpirome Sulfate
- Cefpodoxime Proxetil
- Cefprozil
- Cefprozil Monohydrate
- Cefradine
- Ceftaroline Fosamil
- Ceftazidime
- Cefteram
- Ceftibuten
- Ceftiofur
- Ceftizoxime
- Ceftobiprole
- Ceftolozane
- Ceftriaxone
- Cefuroxime
- Celecoxib
- Celiprolol
- Cephapirin
- Ceritinib
- Cetirizine
- Cetrimide
- Cetrorelix
- Cevimeline
- Chenodeoxycholic Acid
- Chicoric Acid
- Chlorambucil
- Chloramphenicol
- Chlorantraniliprole
- Chlordiazepoxide
- Chlorhexidine
- Chlormadinone
- Chloroacetamide
- Chlorophenothiazine
- Chloroquine
- Chlorphenamine
- Chlorpromazine
- Chlorpropamide
- Chlorprothixene
- Chlortalidone
- Chlorthalidone
- Chlorzoxazone
- Cholesterol
- Cibenzoline
- Ciclopirox
- Cidofovir
- Cilastatin
- Cilazapril
- Cilnidipine
- Cilostazol
- Cimetidine
- Cinacalcet
- Cinchocaine
- Cinitapride
- Cinnarizine
- Ciprofibrate
- Ciprofloxacin
- Cisapride
- Cisplatin
- Citalopram
- Citicoline
- Cladribine
- Clarithromycin
- Clauvanic Acid
- Clavulanate
- Clemastine
- Clenbuterol
- Clevidipine
- Clidinium
- Clindamycin
- Clioquinol
- Clobazam
- Clobenzorex
- Clobetasol Propionate
- Clobetasone Butyrate
- Clobutinol
- Clofarabine
- Clofazimine
- Clomiphene
- Clomipramine
- Clonazepam
- Clonidine
- Clonixin
- Clopidogrel
- Clothianidin
- Clotrimazole
- Cloxacillin
- Cloxazolam
- Clozapine
- Cobimetinib
- Colchicine
- Colesevelam
- Colestipol
- Copanlisib
- Cornigerine
- Cortisone
- Corydaline
- Cosyntropin
- Creatine
- Creatinine
- Crisaborole
- Crizotinib
- Cromolyn
- Crotamiton
- Curcumin
- Cyamemazine
- Cyanocobalamin
- Cyantraniliprole
- Cyclamate
- Cyclizine
- Cyclobenzaprine
- Cyclopentolate
- Cyclophosphamide
- Cycloserine
- Cyclosporin
- Cyphenothrin
- Cyprodinil
- Cyproheptadine
- Cyproterone
- Cysteamine
- Cytarabine
- Cytidine
- Cytisine
- Cytosine
