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.

• Doxorubicin pegylated liposomal 4 medicines: 4 alone
• Doxycycline 16 medicines: 16 alone
• Doxylamine 1 medicine: 1 in combination
• Doxylamine succinate 2 medicines: 2 in combination
• Dronabinol 1 medicine: 1 in combination
• Dronedarone 4 medicines: 4 alone
• Droperidol 2 medicines: 2 alone
• Drospirenone 27 medicines: 9 alone · 18 in combination
• Drotrecogin alfa (activated) 1 medicine: 1 alone
• Dulaglutide 7 medicines: 7 alone
• Duloxetine 47 medicines: 47 alone
• Dupilumab 6 medicines: 6 alone
• Durvalumab 1 medicine: 1 alone
• Dutasteride 9 medicines: 7 alone · 2 in combination
• Duvelisib 2 medicines: 2 alone
• Dydrogesterone 6 medicines: 3 alone · 3 in combination
• E. coli adhesin F4 (F4ab, F4ac, F4ad), E. coli adhesin F5, E. coli adhesin F6, E. coli adhesin F41 1 medicine: 1 alone
• E2 glycoprotein of classical swine fever virus 1 medicine: 1 alone
• Ebola virus Sudan Gulu strain GP 1 medicine: 1 in combination
• Ebola virus Taï Forest strain nucleoprotein and the Marburg virus Musoke strain GP 1 medicine: 1 in combination
• Echinacea 11 medicines: 11 alone
• Echinacea root extract 1 medicine: 1 alone
• Econazole 4 medicines: 4 alone
• Eculizumab 3 medicines: 3 alone
• Edetic acid 1 medicine: 1 in combination
• Edotreotide 1 medicine: 1 alone
• Edoxaban 10 medicines: 10 alone
• Efalizumab 1 medicine: 1 alone
• Efanesoctocog alfa 5 medicines: 5 alone
• Efavirenz 21 medicines: 10 alone · 11 in combination
• Efgartigimod alfa 1 medicine: 1 alone
• Eflornithine 1 medicine: 1 alone
• Efmoroctocog alfa 8 medicines: 8 alone
• Eftrenonacog alfa 5 medicines: 5 alone
• Egg phosphatide 1 medicine: 1 in combination
• Eicosapentaenoic acid 3 medicines: 3 in combination
• Eimeria acervulina, strain 003, Eimeria maxima, strain 013, Eimeria mitis, strain 006, Eimeria praecox, strain 007, Eimeria tenella, strain 004 1 medicine: 1 alone
• Elacestrant 2 medicines: 2 alone
• Eladocagene exuparvovec 1 medicine: 1 alone
• Elafibranor 1 medicine: 1 alone
• Elbasvir 2 medicines: 2 in combination
• Eletriptan 9 medicines: 9 alone
• Elexacaftor 4 medicines: 4 in combination
• Eliglustat 2 medicines: 2 alone
• Elinzanetant 1 medicine: 1 alone
• Elivaldogene autotemcel 1 medicine: 1 alone
• Elosulfase alfa 1 medicine: 1 alone
• Elotuzumab 1 medicine: 1 alone
• Elranatamab 1 medicine: 1 alone
• Eltrombopag 16 medicines: 16 alone
• Eluxadoline 1 medicine: 1 alone
• Elvitegravir 4 medicines: 1 alone · 3 in combination
• Emedastine difumarate 1 medicine: 1 alone
• Emicizumab 3 medicines: 3 alone
• emodepside, praziquantel 1 medicine: 1 alone
• emodepside, toltrazuril 1 medicine: 1 alone
• Empagliflozin 13 medicines: 4 alone · 9 in combination
• Emtricitabine 48 medicines: 3 alone · 45 in combination
• Emulsifying wax 3 medicines: 3 in combination
• Enalapril 34 medicines: 24 alone · 10 in combination
• Encorafenib 2 medicines: 2 alone
• Enflicoxib 1 medicine: 1 alone
• Enfortumab vedotin 2 medicines: 2 alone
• Enfuvirtide 1 medicine: 1 alone
• Enmetazobactam 1 medicine: 1 in combination
• Enoxaparin 70 medicines: 70 alone
• Enoximone 1 medicine: 1 alone
• Entacapone 41 medicines: 11 alone · 30 in combination
• Entecavir 26 medicines: 26 alone
• Entrectinib 2 medicines: 2 alone
• Enzalutamide 9 medicines: 9 alone
• Epcoritamab 3 medicines: 3 alone
• Ephedrine 9 medicines: 8 alone · 1 in combination
• Ephedrine hydrochloride 5 medicines: 4 alone · 1 in combination
• Epinastine 1 medicine: 1 alone
• Epirubicin 8 medicines: 8 alone
• Eplerenone 11 medicines: 11 alone
• Eplontersen 1 medicine: 1 alone
• Epoetin alfa 19 medicines: 19 alone
• Epoetin beta 9 medicines: 9 alone
• Epoetin delta 1 medicine: 1 alone
• Epoetin theta 16 medicines: 16 alone
• Epoetin zeta 12 medicines: 12 alone
• Epoprostenol 9 medicines: 9 alone
• eprinomectin, esafoxolaner, praziquantel 1 medicine: 1 alone
• eprinomectin, fipronil, praziquantel, (S)-methoprene 1 medicine: 1 alone
• Eprosartan 8 medicines: 8 alone
• Eptacog alfa (activated) 4 medicines: 4 alone
• Eptacog beta (activated) 3 medicines: 3 alone
• Eptifibatide 6 medicines: 6 alone
• Eptinezumab 2 medicines: 2 alone
• Eptotermin alfa 2 medicines: 2 alone
• Equine influenza-virus strains: A/equine-2/South Africa/4/03, A/equine-2/Newmarket/2/93 1 medicine: 1 alone
• Equine influenza-virus strains: A/equine-2/South Africa/4/03, A/equine-2/Newmarket/2/93, tetanus toxoid 1 medicine: 1 alone
• Equine umbilical cord mesenchymal stem cells 1 medicine: 1 alone
• Eravacycline 2 medicines: 2 alone
• Erdafitinib 3 medicines: 3 alone
• Erdosteine 1 medicine: 1 alone
• Erenumab 4 medicines: 4 alone
• Ergocalciferol 13 medicines: 2 alone · 11 in combination

Sources: the MHRA product information, the European Medicines Agency and the NHS Dictionary of Medicines and Devices (dm+d), NHS Business Services Authority.