- Lumitene
- Lunelle Monthly Contraceptive Injection containing Estradiol Cypionate and Medroxyprogesterone Acetate
- Lunesta
- Lupron
- Lupron Depot
- Lupron Depot-3 Month
- Lupron Depot-3 Month 11.25 mg
- Lupron Depot-3 Month 22.5 mg
- Lupron Depot-4 Month 30 mg
- Lupron Depot-Ped
- Lupron-3 Month SR Depot 22.5 mg
- Luride
- Luride Lozi-Tabs
- Luride-SF Lozi-Tabs
- Lutrepulse
- Lutropin alfa
- Luveris
- Luvox
- Luxiq
- Lyderm
- Lyme Disease Vaccine
- Lyphocin
- Lypressin
- Lysodren
- Lytren
- l-Carnitine
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