- C1 inhibitor (human)
- C1-esterase inhibitor, human
- cabazitaxel
- cabergoline
- cabozantinib
- caffeine
- caffeine citrate
- caffeine, anhydrous
- cajuput oil
- calamine
- calcipotriol
- calcipotriol hydrate
- calcipotriol monohydrate
- calcitriol
- calcium
- calcium acetate
- calcium carbonate
- calcium chloride
- calcium chloride dihydrate
- calcium folinate
- calcium gluconate
- calcium glycerophosphate
- calcium lactate
- calcium lactate gluconate
- calcium levofolinate
- calcium phosphate
- calcium polystyrene sulfonate
- calcium sennosides
- calendula
- Camellia sinensis (green tea) leaf extract
- camphor
- canagliflozin hemihydrate
- canakinumab
- candesartan cilexetil
- cangrelor
- cannabidiol
- capecitabine
- capreomycin sulfate
- capsaicin
- capsicum oleoresin (capsicin)
- capsicum tincture
- captopril
- carbamazepine
- carbetocin
- carbidopa
- carbidopa monohydrate
- carbimazole
- carbocisteine
- carbomer
- carboplatin
- carboprost tromethamine
- carfilzomib
- carglumic acid
- carmellose sodium
- carmustine
- carteolol hydrochloride
- carvedilol
- cascara bark
- caspofungin acetate
- cat fur
- cefaclor
- cefaclor monohydrate
- cefadroxil monohydrate
- cefalexin
- cefalexin monohydrate
- cefixime
- cefotaxime sodium
- cefpodoxime proxetil
- cefradine
- ceftaroline fosamil
- ceftazidime pentahydrate
- ceftobiprole
- ceftobiprole medocaril sodium
- ceftolozane sulfate
- ceftriaxone sodium
- cefuroxime axetil
- cefuroxime sodium
- celecoxib
- celiprolol hydrochloride
- ceritinib
- certolizumab pegol
- cetalkonium chloride
- cetirizine dihydrochloride
- cetirizine hydrochloride
- cetrimide
- cetrorelix acetate
- cetuximab
- cetylpyridinium chloride
- chamomile extracts
- chamomilla
- chloral hydrate
- chlorambucil
- chloramphenicol
- chlordiazepoxide hydrochloride
- chlorhexidine acetate
- chlorhexidine digluconate
- chlorhexidine dihydrochloride
- chlorhexidine gluconate
- chlorhexidine gluconate solution
- chlorobutanol
- chlorobutanol hemihydrate
- chlorocresol
- chloroprocaine hydrochloride
- chloroquine phosphate
- chloroxylenol
- chlorphenamine maleate
- chlorpromazine hydrochloride
- chlortalidone
- chlortetracycline hydrochloride
- cholic acid
- choline chloride
- choline salicylate
- choline salicylate
- choriogonadotropin alfa
- chromium
- ciclesonide
- ciclosporin
- cilastatin sodium
- cilostazol
- cimetidine
- cinacalcet hydrochloride
- cinchocaine hydrochloride
- cinnarizine
- ciprofibrate
- ciprofloxacin
- ciprofloxacin hydrochloride
- ciprofloxacin lactate
- cisatracurium besilate
- cisplatin
- citalopram hydrobromide
- citalopram hydrochloride
- citric acid
- citric acid monohydrate
- citric acid, anhydrous
- Clad. Cladosporioides
- cladribine
- clarithromycin
- clarithromycin citrate
- clarithromycin lactobionate
- clavulanic acid
- clemastine hydrogen fumarate
- clevidipine
- clindamycin hydrochloride
- clindamycin phosphate
- clioquinol
- clivers powder
- clobazam
- clobetasol propionate
- clobetasone butyrate
- clofarabine
- clomethiazole
- clomethiazole edisilate
- clomifene citrate
- clomipramine hydrochloride
- clonazepam
- clonidine hydrochloride
- clopidogrel besilate
- clopidogrel bisulfate
- clopidogrel hydrochloride
- clopidogrel hydrogen sulfate
- cloral betaine
- clostridium botulinum type a toxin-haemagglutinin complex
- clotrimazole
- clove oil
- clozapine
- coal tar extract
- coal tar solution
- coal tar, distilled
- co-amoxiclav
- cobicistat
- cobimetinib hemifumarate
- cocaine hydrochloride
- cocarboxylase tetrahydrate
- cocculus
- Cocksfoot pollen (Dactylis glomerata)
- coconut oil
- codeine
- codeine phosphate
- codeine phosphate hemihydrate
- colchicine
- colecalciferol; cholecalciferol
- colesevelam hydrochloride
- colestipol hydrochloride
- colestyramine
- colistimethate sodium
- colistin sulfate
- collagenase clostridium histolyticum
- compound benzoin tincture
- conestat alfa
- copper
- corifollitropin alfa
- Crested Dogstail pollen (Cynosurus cristatus)
- crisantaspase
- crizotinib
- crotamiton
- Cultivated Rye pollen (Secale cereale)
- cyanocobalamin
- cyclizine hydrochloride
- cyclizine lactate
- cyclizine tartrate
- cyclopenthiazide
- cyclopentolate hydrochloride
- cyclophosphamide monohydrate
- cycloserine
- cyproterone acetate
- cysteine
- cytarabine
