- lenograstim
- lens
- lentinan
- LEP-ETU
- lepirudin
- leptomeningeal
- leptomeningeal carcinoma
- leptomeningeal metastasis
- leridistim
- lerisetron
- Lescol
- lesion
- lestaurtinib
- lethargy
- letrozole
- leucine-enhanced essential amino acid dietary supplement
- leucovorin
- leucovorin calcium
- leukapheresis
- leukemia
- leukemic leptomeningitis
- leukemic meningitis
- Leukeran
- Leukine
- leukocyte
- leukopenia
- leukoplakia
- leuprolide
- leuprolide acetate
- Leustatin
- Leuvectin
- levamisole
- levamisole hydrochloride
- Levaquin
- levels of evidence
- levetiracetam
- levocarnitine
- levodopa
- levofloxacin
- levonantradol
- levonorgestrel
- levonorgestrel-releasing intrauterine system
- Levopa
- levothyroxine sodium
- Levoxyl
- Levulan
- Levulan Kerastick
- Lexapro
- lexatumumab
- LGD1069