Active substances
2,443 active substances of the UK medicines whose patient leaflet or SPC is on this site, from A to Z – with the number of medicines containing the substance alone or in a combination with other substances.
- Clomipramine 8 medicines: 8 alone
- Clonazepam 28 medicines: 28 alone
- Clonidine 10 medicines: 10 alone
- Clopidogrel 37 medicines: 37 alone
- clopidogrel, acetylsalicylic acid 3 medicines: 3 alone
- Cloral betaine 1 medicine: 1 alone
- Clostridioides difficile toxoid A, Clostridioides difficile toxoid B, Clostridium perfringens, type A, alpha toxoid 1 medicine: 1 alone
- Clostridium-perfringens-type-A alpha toxoid 1 medicine: 1 alone
- CLOSTRIDIUM PERFRINGENS TYPE C, BETA1 TOXOID / Clostridium perfringens, type A, alpha toxoid / Clostridium perfringens, type A, beta2 toxoid / Escherichia coli, fimbrial adhesin F4ab / Escherichia coli, fimbrial adhesin F4ac / Escherichia coli, fimbrial 1 medicine: 1 alone
- Clostridium perfringens type C / Escherichia coli F4ab / E. coli F4ac / E. coli F5 / E. coli F6 / E. coli LT 1 medicine: 1 alone
- Clostridium tetani toxoid / Vcp 2242 virus / Vcp1529 virus / Vcp1533 virus / vCP3011 virus 1 medicine: 1 alone
- Clotrimazole 36 medicines: 32 alone · 4 in combination
- Clove oil 8 medicines: 2 alone · 6 in combination
- Clozapine 14 medicines: 14 alone
- Coal tar 4 medicines: 4 alone
- Coal tar distilled 1 medicine: 1 in combination
- Coal tar solution 4 medicines: 2 alone · 2 in combination
- Cobicistat 9 medicines: 1 alone · 8 in combination
- Cobimetinib 1 medicine: 1 alone
- Cocaine 1 medicine: 1 alone
- Coconut oil 2 medicines: 1 alone · 1 in combination
- Codeine 26 medicines: 20 alone · 6 in combination
- Codeine phosphate 66 medicines: 6 alone · 60 in combination
- Coffea tosta 1 medicine: 1 in combination
- Colchicine 9 medicines: 9 alone
- Colecalciferol 94 medicines: 69 alone · 25 in combination
- Colesevelam 6 medicines: 6 alone
- Colestilan 1 medicine: 1 alone
- Colestipol 2 medicines: 2 alone
- Colestyramine 3 medicines: 3 alone
- Colistimethate sodium 13 medicines: 13 alone
- Colistin 9 medicines: 9 alone
- Collagenase clostridium histolyticum 1 medicine: 1 alone
- Concentrate of proteolytic enzymes enriched in bromelain 2 medicines: 2 alone
- Conestat alfa 2 medicines: 2 alone
- Conjugated oestrogens 6 medicines: 3 alone · 3 in combination
- Copper 1 medicine: 1 in combination
- Copper (64Cu) chloride 2 medicines: 2 alone
- Copper chloride 2 medicines: 2 in combination
- Copper chloride dihydrate 2 medicines: 2 in combination
- Copper gluconate 1 medicine: 1 in combination
- Copper tetramibi tetrafluoroborate 3 medicines: 3 alone
- Corifollitropin alfa 3 medicines: 3 alone
- COVID-19 vaccine 24 medicines: 24 alone
- Crisaborole 2 medicines: 2 alone
- Crisantaspase 2 medicines: 2 alone
- Crizanlizumab 1 medicine: 1 alone
- Crizotinib 5 medicines: 5 alone
- Crotamiton 3 medicines: 1 alone · 2 in combination
- CX-024414 (single-stranded, 5’-capped messenger RNA (mRNA) produced using a cell-free in vitro transcription from the corresponding DNA templates, encoding the viral spike (S) protein of SARS-CoV-2) 1 medicine: 1 alone
- Cyanocobalamin 12 medicines: 7 alone · 5 in combination
- Cyclizine 3 medicines: 3 alone
- Cyclizine hydrochloride 1 medicine: 1 in combination
- Cyclopentolate 4 medicines: 4 alone
- Cyclophosphamide 16 medicines: 16 alone
- Cycloserine 1 medicine: 1 alone
- Cyproheptadine 1 medicine: 1 alone
- Cyproterone 6 medicines: 6 alone
- Cyproterone acetate 6 medicines: 2 alone · 4 in combination
- Cytarabine 5 medicines: 5 alone
- Cytarabine (liposomal) 1 medicine: 1 in combination
- Cytisinicline 3 medicines: 3 alone
- Cytomegalovirus immunoglobulin 1 medicine: 1 alone
- D-camphor 2 medicines: 2 in combination
- Dabigatran etexilate 25 medicines: 25 alone
- Dabrafenib 3 medicines: 3 alone
- Dacarbazine 10 medicines: 10 alone
- Daclatasvir dihydrochloride 1 medicine: 1 alone
- Daclizumab 2 medicines: 2 alone
- Dacomitinib 3 medicines: 3 alone
- Dactinomycin 1 medicine: 1 alone
- Dalbavancin 4 medicines: 4 alone
- Dalteparin 11 medicines: 11 alone
- Damoctocog alfa pegol 2 medicines: 2 alone
- Danazol 3 medicines: 3 alone
- Danicopan 2 medicines: 2 alone
- Dantrolene 6 medicines: 6 alone
- Dantron 2 medicines: 2 in combination
- Dapagliflozin 24 medicines: 12 alone · 12 in combination
- Dapoxetine 3 medicines: 3 alone
- Dapsone 5 medicines: 5 alone
- Daptomycin 18 medicines: 18 alone
- Daratumumab 2 medicines: 2 alone
- Darbepoetin alfa 31 medicines: 31 alone
- Daridorexant 2 medicines: 2 alone
- Darifenacin 4 medicines: 4 alone
- Darolutamide 1 medicine: 1 alone
- Darunavir 39 medicines: 36 alone · 3 in combination
- Darvadstrocel 1 medicine: 1 alone
- Dasabuvir sodium 1 medicine: 1 alone
- Dasatinib 55 medicines: 55 alone
- Daunorubicin hydrochloride, cytarabine 1 medicine: 1 alone
- Daunorubicin (liposomal) 1 medicine: 1 in combination
- Decitabine 3 medicines: 2 alone · 1 in combination
- Defatted powder of Arachis hypogaea L., semen (peanuts) 1 medicine: 1 alone
- Deferasirox 42 medicines: 42 alone
- Deferiprone 7 medicines: 7 alone
- Defibrotide 1 medicine: 1 alone
- Deflazacort 3 medicines: 3 alone
- Degarelix 4 medicines: 4 alone
Sources: the MHRA product information, the European Medicines Agency and the NHS Dictionary of Medicines and Devices (dm+d), NHS Business Services Authority.