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.
- Icatibant 6 medicines: 6 alone
- Ichthammol 2 medicines: 2 in combination
- Icosapent ethyl 1 medicine: 1 alone
- Idarubicin 8 medicines: 8 alone
- Idarucizumab 1 medicine: 1 alone
- Idebenone 1 medicine: 1 alone
- Idecabtagene vicleucel 1 medicine: 1 alone
- Idelalisib 2 medicines: 2 alone
- Idursulfase 1 medicine: 1 alone
- Ifosfamide 2 medicines: 2 alone
- Iloprost 7 medicines: 7 alone
- Imatinib 26 medicines: 26 alone
- Imepitoin 1 medicine: 1 alone
- imidacloprid, moxidectin 2 medicines: 2 alone
- Imidapril 3 medicines: 3 alone
- Imiglucerase 1 medicine: 1 alone
- Imipenem 5 medicines: 1 alone · 4 in combination
- Imipramine 8 medicines: 8 alone
- Imiquimod 3 medicines: 3 alone
- Imlifidase 1 medicine: 1 alone
- Inactivated bluetongue virus, serotype-1 2 medicines: 2 alone
- Inactivated bluetongue virus, serotype 1, strain ALG2006/01 E1, Inactivated bluetongue virus, serotype 4, strain BTV-4/SPA-1/2004, Inactivated bluetongue virus, serotype 8, strain BEL2006/01 1 medicine: 1 alone
- Inactivated bluetongue virus, serotype 1, strain BTV-1/ALG2006/01 E1 RP, inactivated bluetongue virus, serotype 8, strain btv-8/bel2006/02 1 medicine: 1 alone
- Inactivated bluetongue virus, serotype 1, strain BTV-1/ALG2006/01, inactivated bluetongue virus, serotype 8, strain btv-8/bel2006/02 1 medicine: 1 alone
- Inactivated bluetongue virus, serotype 8, strain btv-8/bel2006/02 2 medicines: 2 alone
- Inactivated Bordetella bronchiseptica, strain 833CER, recombinant type-D Pasteurella-multocida toxin 1 medicine: 1 alone
- Inactivated chimaeric flavivirus strain YF-WN 1 medicine: 1 alone
- Inactivated Coxiella burnetii vaccine, strain Nine Mile 1 medicine: 1 alone
- Inactivated feline rhinotracheitis virus, inactivated feline calicivirus, inactivated feline Chlamydophila felis, inactivated feline leukaemia virus, inactivated feline panleukopenia virus 1 medicine: 1 alone
- Inactivated fimbrial adhesins of Escherichia coli F4ab, Inactivated fimbrial adhesins of Escherichia coli F4ac, Inactivated fimbrial adhesins of Escherichia coli F5, Inactivated fimbrial adhesins of Escherichia coli F6 1 medicine: 1 alone
- Inactivated IBR virus 1 medicine: 1 alone
- Inactivated influenza-A virus / swine 2 medicines: 2 alone
- Inactivated Leptospira strains: L. interrogans serogroup Canicola serovar Portland-vere (strain Ca-12-000) 1 medicine: 1 in combination
- Inactivated Mycoplasma hyopneumoniae, strain P-5722-3, Inactivated recombinant chimeric porcine circovirus type 1 containing the porcine circovirus type 2a open reading frame 2 (ORF2) protein, Inactivated recombinant chimeric porcine circovirus type 1 1 medicine: 1 alone
- Inactivated porcine circovirus type 2 (PCV2) 1 medicine: 1 alone
- Inactivated rabbit haemorrhagic disease type 2 virus (RHDV2), strainV-1037 1 medicine: 1 alone
- Inactivated recombinant chimeric porcine circovirus type 1 containing the porcine circovirus type 2 ORF2 protein, Inactivated Mycoplasma hyopneumoniae, strain P-5722-3 1 medicine: 1 alone
- Inactivated Schmallenberg virus, strain BH80/11-4 1 medicine: 1 alone
- Inactivated West Nile virus, strain VM-2 1 medicine: 1 alone
- Inactivated whole avian influenza virus antigen of H5 subtype (strain H5N6, A/duck/Potsdam/2243/84) 1 medicine: 1 alone
- Inactivated whole avian influenza virus antigen of H5N2 subtype (strain A/duck/Potsdam/1402/86) 1 medicine: 1 alone
- Inactivated whole avian influenza virus antigen of H7N1 subtype (strain, A/CK/Italy/473/99) 1 medicine: 1 alone
- Inactivated whole cell suspension of Ornithobacterium rhinotracheale serotype A, strain B3263/91 1 medicine: 1 alone
- Inavolisib 2 medicines: 2 alone
- Inclisiran 1 medicine: 1 alone
- Indacaterol 16 medicines: 5 alone · 11 in combination
- Indapamide 20 medicines: 17 alone · 3 in combination
- Indigo carmine 2 medicines: 2 alone
- Indinavir sulfate ethanolate 1 medicine: 1 alone
- Indium [In-111] chloride 1 medicine: 1 in combination
- Indocyanine green 2 medicines: 2 alone
- Indometacin 18 medicines: 18 alone
- Indoramin 3 medicines: 3 alone
- Indoxacarb 1 medicine: 1 alone
- indoxacarb, permethrin 1 medicine: 1 alone
- Industrial methylated spirit 2 medicines: 2 in combination
- Infliximab 7 medicines: 7 alone
- Influenza A virus/human strain: A/Jena/VI5258/2009 (H1N1)pdm09, inactivated 1 medicine: 1 alone
- Influenza A virus subtype H1N1 haemagglutinin, recombinant, Influenza A virus subtype H3N2 haemagglutinin, recombinant, Influenza B virus Victoria lineage haemagglutinin, recombinant, Influenza B virus Yamagata lineage haemagglutinin, recombinant 1 medicine: 1 alone
- Influenza vaccine 3 medicines: 3 alone
- Influenza vaccine (whole virion, inactivated) containing antigen of: A/Vietnam/1203/2004 (H5N1) 1 medicine: 1 alone
- Influenza virus (inactivated, split) of the following strains:A/California/7/2009 (H1N1)pdm09 - like strain (A/California/7/2009, NYMC X-179A)A/Hong Kong/4801/2014 (H3N2) - like strain (A/Hong Kong/4801/2014, NYMC X-263B)B/Brisbane/60/2008 - like strain 2 medicines: 2 alone
- Influenza virus surface antigens (haemagglutinin and neuraminidase), inactivated, of the following strains:A/California/7/2009 (H1N1)pdm09 - like strain(A/Brisbane/10/2010, wild type)A/Switzerland/9715293/2013 (H3N2) - like strain(A/South Australia/55 1 medicine: 1 alone
- Influenza virus surface antigens (haemagglutinin and neuraminidase) of strain: A/California/7/2009 (H1N1)-derived strain used NYMC X-181 1 medicine: 1 alone
- Influenza virus surface antigens (haemagglutinin and neuraminidase) of strain: A/turkey/Turkey/1/05 (H5N1)-like strain (NIBRG-23) 1 medicine: 1 alone
- Influenza virus surface antigens (haemagglutinin and neuraminidase) of strain A/Viet Nam/1194/2004 (H5N1) 1 medicine: 1 alone
- Influenza virus surface antigens, inactivated: A/Viet Nam/1194/2004 (H5N1) 1 medicine: 1 alone
- Influenza virus (whole virion, inactivated), containing antigen of: A/Vietnam/1203/2004 (H5N1) 1 medicine: 1 alone
- Ingenol mebutate 1 medicine: 1 alone
- Inosine acedoben dimepranol 1 medicine: 1 alone
- Inositol 1 medicine: 1 in combination
- Inositol nicotinate 1 medicine: 1 alone
- Inotersen 1 medicine: 1 alone
- Inotuzumab ozogamicin 1 medicine: 1 alone
- Insulin aspart 30 medicines: 27 alone · 3 in combination
- Insulin aspart protamine 2 medicines: 2 in combination
- Insulin degludec 8 medicines: 6 alone · 2 in combination
- Insulin detemir 5 medicines: 5 alone
- Insulin glargine 15 medicines: 13 alone · 2 in combination
- Insulin glulisine 3 medicines: 3 alone
- Insulin human 18 medicines: 18 alone
- Insulin isophane human 13 medicines: 9 alone · 4 in combination
- Insulin isophane porcine 2 medicines: 1 alone · 1 in combination
- Insulin lispro 33 medicines: 26 alone · 7 in combination
- Insulin lispro protamine 7 medicines: 7 in combination
- Insulin soluble human 9 medicines: 5 alone · 4 in combination
- Insulin soluble porcine 2 medicines: 1 alone · 1 in combination
- Interferon alfa-2b 2 medicines: 2 alone
- Interferon beta-1a 11 medicines: 11 alone
- Interferon beta-1b 3 medicines: 3 alone
- Interferon gamma 1 medicine: 1 alone
- Iobenguane [I-123] 1 medicine: 1 alone
- Iobitridol 2 medicines: 2 alone
- Iodine 2 medicines: 1 alone · 1 in combination
- Iodoform 2 medicines: 2 in combination
- Ioflupane (123i) 2 medicines: 2 alone
- Ioflupane (123l) 2 medicines: 2 alone
- Ioflupane [I-123] 2 medicines: 2 alone
- Iohexol 8 medicines: 8 alone
- Iomeprol 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.