- Imatinib
- Imbruvica
- Imfinzi
- Imidapril
- Imidazole Salicylate
- Imiglucerase
- Imipenem And Enzyme Inhibitor
- Imipenem, cilastatin and relebactam
- Imipramine
- Imipramine Oxide
- Imiquimod
- Imitrex
- Imlygic
- Immune globulin with a recombinant human hyaluronidase
- Immunocyanin
- Immunoglobulins, Normal Human, For Extravascular Adm.
- Immunoglobulins, Normal Human, For Intravascular Adm.
- Imodium
- Imodium Advanced
- Imodium Multi-Symptom Relief
- Imolamine
- Imotil
- Imovax
- Impavido
- Implanon
- Impoyz
- Imuran
- Imvexxy