- Kebuzone
- Keep Alert
- Keepan
- Keflex

- Keflin
- Keftab

- Kefurox

- Kefzol

- Kelnor

- Kemadrin
- Kemstro

- Kenalog

- Kengreal

- Kepivance

- Keppra

- Keppra XR

- Kera-HC
- Kerafoam
- Keralac
- Keralyt
- Kerasal
- Keratol
- Keratol 40
- Keratol HC
- Kerlone

- Kerol
- Kerydin

- Kesimpta
- Kestrone 5
- Ketacine
- Ketaject
- Ketalar
- Ketamine
- Ketanserin
- Ketaset
- Ketathesia
- Ketaved
- Ketazolam
- Ketek

- Ketobemidone
- Ketobemidone And Antispasmodics
- Ketoconazole

- Ketodan
- Ketoprofen
- Ketoprofen, Combinations
- Ketorolac

- Ketotifen

- Kevzara

- Key-Pred
- Key-Pred SP
- Keystone
- Keystone Classic