-
- L-Caine
- L-PAM
- L-Triiodothyronine
- L-Tryptophan
- LA-12
- Labetalol Oral
- Lacril
- Lacrisert
- LactiCare-HC
- Lactisol
- Lactofree
- Lactulose
- Lagol
- Lamictal
- Lamisil
- Lamivudine
- Lamivudine and Zidovudine
- Lamotrigine
- Lamprene
- Lanacort
- Lanacort 10
- Laniazid
- Laniroif
- Lanophyllin
- Lanorinal
- Lanoxicaps
- Lanoxin
- Lanoxin Elixir Pediatric
- Lanoxin Injection
- Lanoxin Injection Pediatric
- Lanoxin Pediatric Elixir
- Lanoxin Pediatric Injection
- Lansoprazole
| - Lansoprazole/clarithromycin/amoxicillin
- Lansoÿl
- Lansoÿl Sugar Free
- Lanthanum
- Lantus
- Lanvis
- Largactil
- Largactil Liquid
- Largactil Oral Drops
- Largon
- Lariam
- Larodopa
- Laronidase
- Lasix
- Lasix Special
- Latanoprost
- Lavatar
- Laxatives
- Laxinate 100
- Laxit
- LazerSporin-C
- Lazersporin-C containing Hydrocortisone, Neosporin Sulfate, and Polymyxin B Sulfate
- Lectopam
- Ledercillin VK
- Leflunomide
- Legatrin PM Caplets containing Diphenhydramine Hydrochloride and Acetaminophen
- Lemoderm
- Lenoltec with Codeine No.1
- Lenoltec with Codeine No.2
- Lenoltec with Codeine No.3
- Lenoltec with Codeine No.4
- Lente
- Lente Iletin
| - Lente Iletin II
- Lepargylic acid
- Leritine
- Lescol
- Lescol XL
- Letrozole
- Leucovorin
- Leucovorin Calcium
- Leukeran
- Leukine
- Leuprolide
- Leustatin
- Levalbuterol
- Levalbuterol Oral Inhalation
- Levamisole
- Levaquin
- Levaquin Injection
- Levaquin Oral
- Levate
- Levatol
- Levbid
- Levetiracetam
- Levitra
- Levlen
- Levlite
- Levo-Dromoran
- Levo-T
- Levobetaxolol
- Levobunolol Ophthalmic
- Levocabastine
- Levocarnitine
- Levocarnitine Injection
- Levodopa
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