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Medicines Beginning With I
25 medicines in the Drug Guide begin with the letter I. Every name links to a plain-language page covering what the medicine is for, its common side effects, its major cautions and — for most — a kidney note.
A B C D E F G H I K L M N O P Q R S T U V W Z
| Medicine | Brand names | Used for |
|---|---|---|
| Ibandronate | Boniva | Osteoporosis in women after menopause; Preventing bone loss in women after menopause at risk of osteoporosis |
| Ibuprofen | Advil, Motrin | Pain relief; Fever reduction |
| Icosapent ethyl | Vascepa | Very high triglycerides; Reducing heart attack and stroke risk in certain patients with heart disease |
| Imipenem-cilastatin | Primaxin | Serious hospital infections of the lungs and abdomen; Serious urinary and bloodstream infections (hospital) |
| Imipramine | Tofranil | Depression; Bedwetting in children |
| Indapamide | Lozol | High blood pressure; Fluid buildup in heart failure |
| Indomethacin | Indocin | Gout attacks; Arthritis and joint inflammation |
| Infliximab | Remicade | Crohn disease and ulcerative colitis; Rheumatoid arthritis and other autoimmune arthritis types |
| Insulin aspart | NovoLog, Fiasp | Type 1 diabetes; Type 2 diabetes |
| Insulin degludec | Tresiba | Type 1 diabetes; Type 2 diabetes |
| Insulin detemir | Levemir | Type 1 diabetes; Type 2 diabetes |
| Insulin glargine | Lantus, Basaglar, Toujeo | Type 1 diabetes; Type 2 diabetes |
| Insulin isophane | Humulin N, Novolin N | Type 1 diabetes; Type 2 diabetes |
| Insulin lispro | Humalog, Admelog | Type 1 diabetes; Type 2 diabetes |
| Insulin regular | Humulin R, Novolin R | Type 1 diabetes; Type 2 diabetes |
| Ipratropium | Atrovent | COPD maintenance and flare-ups; Asthma flare-ups in emergency care, combined with albuterol |
| Irbesartan | Avapro | High blood pressure; Kidney protection in type 2 diabetes |
| Iron sucrose | Venofer | Iron deficiency anemia in chronic kidney disease; Iron deficiency during dialysis treatments |
| Isoniazid | INH | Treating tuberculosis, combined with other TB medicines; Preventing tuberculosis in people with latent infection |
| Isosorbide dinitrate | Isordil | Preventing chest pain (angina); Heart failure, combined with hydralazine |
| Isosorbide mononitrate | Imdur | Preventing chest pain (angina); Heart failure, in selected patients on specialist advice |
| Isotretinoin | Accutane, Claravis | Severe acne not responding to other treatments; Severe nodular and scarring acne |
| Itraconazole | Sporanox | Fungal nail infections; Certain lung and body-wide fungal infections |
| Ivabradine | Corlanor | Heart failure with a fast resting heart rate; Inappropriate sinus tachycardia |
| Ivermectin | Stromectol | Certain parasitic worm infections; Scabies and head lice (creams and lotions) |
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.