By API Standards
- Cabotegravir
- Caffeine
- Calcipotriol
- Calcitriol
- Canagliflozin
- Candesartan
- Canrenone
- Carbamazepine
- Carbodenafil
- Cariprazine
- Carisoprodol
- Carvedilol
- Cefixime
- CEFTAZIDIME
- Celecoxib
- Ceramide
- Ceritinib
- Cetirizine
- Chidamide
- CHIR99021
- Chlordiazepoxide
- Chloroquine
- Chlorphenamine
- Chlorpheniramine
- Chlorpromazine
- Chlorthalidone
- Chlorzoxazone
- Cholestane
- Cholesterol
- cholic Acid
- CHOLINE
- Cilostazol
- Cinacalcet
- Cinnarizine
- Ciprofibrate
- Ciprofloxacin
- Cisapride
- Citalopram
- Citicoline
- Citramalic
- Citronellyl
- Clarithromycin
- Clascoterone
- Clavulanic Acid
- Clenproperol
- Clevidipine
- Clidinium Bromide
- Clindamycin
- Clobetasol
- Clofentezine
- Clomipramine
- Clonidine
- Clopidogrel
- Clotrimazole
- Clozapine
- Curcumin
- Cyantraniliprole
- Cycloguanil
- Cyclosporin A