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.

• Delafloxacin 2 medicines: 2 alone
• Delamanid 1 medicine: 1 alone
• Demeclocycline 3 medicines: 3 alone
• Dementholised mint oil 2 medicines: 2 in combination
• Denosumab 27 medicines: 27 alone
• Deoxycholic acid 1 medicine: 1 alone
• Depreotide trifluoroacetate 1 medicine: 1 alone
• Dequalinium 1 medicine: 1 alone
• Desferrioxamine 3 medicines: 3 alone
• Desflurane 2 medicines: 2 alone
• Desirudin 1 medicine: 1 alone
• Desloratadine 14 medicines: 14 alone
• desloratadine, pseudophedrine sulfate 1 medicine: 1 alone
• Deslorelin acetate 1 medicine: 1 alone
• Desmopressin 39 medicines: 39 alone
• Desogestrel 23 medicines: 15 alone · 8 in combination
• Desoxycortone pivalate 1 medicine: 1 alone
• Deucravacitinib 1 medicine: 1 alone
• Deuruxolitinib 1 medicine: 1 alone
• Deutivacaftor 2 medicines: 2 in combination
• Dexamethasone 60 medicines: 48 alone · 12 in combination
• Dexamethasone sodium metasulfobenzoate 2 medicines: 2 in combination
• Dexamfetamine 6 medicines: 6 alone
• Dexibuprofen 3 medicines: 3 alone
• Dexketoprofen 6 medicines: 4 alone · 2 in combination
• Dexmedetomidine 12 medicines: 12 alone
• Dexpanthenol 4 medicines: 4 in combination
• Dexrazoxane 2 medicines: 2 alone
• Dextromethorphan 4 medicines: 1 alone · 3 in combination
• Dextromethorphan hydrobromide 9 medicines: 4 alone · 5 in combination
• dextromethorphan, quinidine 1 medicine: 1 alone
• Diamorphine 13 medicines: 13 alone
• Diazepam 32 medicines: 32 alone
• Diazoxide 1 medicine: 1 alone
• Dibotermin alfa 2 medicines: 2 alone
• Dibrompropamidine 2 medicines: 2 alone
• Dichlorobenzyl alcohol 11 medicines: 11 in combination
• Diclofenac 7 medicines: 7 alone
• Diclofenac diethylammonium 12 medicines: 12 alone
• Diclofenac potassium 8 medicines: 8 alone
• Diclofenac sodium 63 medicines: 58 alone · 5 in combination
• Dicobalt edetate 1 medicine: 1 alone
• Dicycloverine 4 medicines: 4 alone
• Dicycloverine hydrochloride 2 medicines: 1 alone · 1 in combination
• Dienogest 7 medicines: 6 alone · 1 in combination
• Diethyl phthalate 1 medicine: 1 in combination
• Diethylamine salicylate 3 medicines: 2 alone · 1 in combination
• Diethylstilbestrol 2 medicines: 2 alone
• Difelikefalin 1 medicine: 1 alone
• Difloxacin 1 medicine: 1 alone
• Diflunisal 2 medicines: 2 alone
• Digoxin 16 medicines: 16 alone
• Digoxin specific antibody 1 medicine: 1 alone
• Dihydrocodeine 10 medicines: 10 alone
• Dihydrocodeine tartrate 14 medicines: 3 alone · 11 in combination
• Diltiazem 57 medicines: 57 alone
• Dimenhydrinate 5 medicines: 2 alone · 3 in combination
• Dimethyl fumarate 27 medicines: 27 alone
• Dimeticone 7 medicines: 1 alone · 6 in combination
• Dimeticone 350 1 medicine: 1 in combination
• Dinoprostone 6 medicines: 6 alone
• dinotefuran, pyriproxyfen, permethrin 1 medicine: 1 alone
• Dinutuximab 1 medicine: 1 alone
• Dinutuximab beta 2 medicines: 2 alone
• Diphenhydramine 12 medicines: 6 alone · 6 in combination
• Diphenhydramine hydrochloride 14 medicines: 6 alone · 8 in combination
• Diphtheria toxoid, hepatitis B surface antigen, Bordetella pertussis (inactivated), tetanus toxoid 1 medicine: 1 alone
• Diphtheria toxoid, tetanus toxoid, Bordetella pertussis antigens: pertussis toxoid, filamentous haemagglutinin, pertactin, fimbriae Types 2 and 3, hepatitis B surface antigen produced in yeast cells, poliovirus (inactivated): type 1 (Mahoney), type 2 … 1 medicine: 1 alone
• Diphtheria toxoid, tetanus toxoid, Bordetella pertussis antigens (pertussis toxoid, filamentous haemagglutinin, pertactin), hepatitis B surface antigen, poliovirus (inactivated) (type-1 (Mahoney strain), type-2 (MEF-1 strain), type-3 (Saukett strain)), 1 medicine: 1 alone
• Diphtheria toxoid, tetanus toxoid, Bordetella pertussis antigens (pertussis toxoid, filamentous haemagglutinin, pertactin), poliovirus (inactivated) (type 1 (Mahoney strain), type 2 (MEF-1 strain), type 3 (Saukett strain)), hepatitis B surface antigen 1 medicine: 1 alone
• Diphtheria toxoid, tetanus toxoid, inactivated Bordetella pertussis, hepatitis B surface antigen (rDNA), Haemophilus influenzae type b polysaccharide 1 medicine: 1 alone
• Dipyridamole 19 medicines: 18 alone · 1 in combination
• Dirlotapide 1 medicine: 1 alone
• Diroximel fumarate 1 medicine: 1 alone
• Diroximel fumarate (BIIB098) 1 medicine: 1 alone
• Disodium phosphate dihydrate 2 medicines: 2 in combination
• Disopyramide 6 medicines: 6 alone
• Disulfiram 4 medicines: 3 alone · 1 in combination
• Dithranol 3 medicines: 3 alone
• Dobutamine 4 medicines: 4 alone
• Docetaxel 27 medicines: 27 alone
• Docosahexaenoic acid 3 medicines: 3 in combination
• Docusate 14 medicines: 14 alone
• Docusate sodium 5 medicines: 4 alone · 1 in combination
• Dolutegravir 9 medicines: 5 alone · 4 in combination
• Domperidone 9 medicines: 9 alone
• Donanemab 1 medicine: 1 alone
• Donepezil 15 medicines: 15 alone
• Donidalorsen 1 medicine: 1 alone
• Dopamine 5 medicines: 5 alone
• Doravirine 2 medicines: 1 alone · 1 in combination
• Doripenem 1 medicine: 1 alone
• Dornase alfa 1 medicine: 1 alone
• Dorzolamide 28 medicines: 13 alone · 15 in combination
• Dostarlimab 1 medicine: 1 alone
• Dosulepin 10 medicines: 10 alone
• Doxapram 3 medicines: 3 alone
• Doxazosin 25 medicines: 25 alone
• Doxepin 6 medicines: 6 alone
• Doxorubicin 8 medicines: 8 alone

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