- L-glutamine
- L-Triiodothyroninesee Liothyronine
- Labetalol
- Labid®see Theophylline
- Lac-Hydrinsee Ammonium Lactate Topical
- Lacosamide
- Lacosamide Injection
- Lactic Acid, Citric Acid, and Potassium Bitartrate Vaginal Contraceptive
- Lactulose
- Ladakamycinsee Azacitidine Injection
- Lagevrio®see Molnupiravir
- Lamictal®see Lamotrigine
- Lamictal® CDsee Lamotrigine
- Lamictal® ODTsee Lamotrigine
- Lamictal® XRsee Lamotrigine
- Lamisil®see Terbinafine
- Lamivudine
- Lamivudine and Tenofovir
- Lamivudine and Zidovudine
- Lamotrigine
- Lampit®see Nifurtimox
- Lamzede®see Velmanase alfa
- Lanadelumab-flyo injection
- Laniazid®see Isoniazid
- Laniroif®see Aspirin, Butalbital, and Caffeine
- Lanophyllin®see Theophylline
- Lanorinal®see Aspirin, Butalbital, and Caffeine
- Lanoxicaps®see Digoxin
- Lanoxin®see Digoxin
- Lanreotide Injection
- Lansoprazole
- Lansoprazole, Clarithromycin, and Amoxicillin
- Lanthanum
- Lantus®see Insulin Glargine (rDNA origin) Injection
- Lapatinib
- Lariam®see Mefloquine
- Larotid® Suspensionsee Amoxicillin
- Larotrectinib
- Lartruvo®see Olaratumab Injection
- Lartus® (as a combination product containing Dextromethorphan, Guaifenesin, Phelyephrine)see Phenylephrine
- Lasix®see Furosemide Injection
- Lasix®see Furosemide
- Lasmiditan
- Lastacaft®see Alcaftadine Ophthalmic
- Latanoprost Ophthalmic
- Latanoprostene Bunod Ophthalmic
- Latisse®see Bimatoprost Topical
- Latuda®see Lurasidone
- Lavoclen®see Benzoyl Peroxide Topical
- Laxilose®see Lactulose
- Lazanda®see Fentanyl Nasal Spray
- Lazcluze®see Lazertinib
- Lazertinib
- LCRsee Vincristine Lipid Complex Injection
- LCRsee Vincristine Injection
- Leader Adult Tussin®see Guaifenesin
- Leader Adult Tussin DM® (as a combination product containing Dextromethorphan, Guaifenesin)see Guaifenesin
- Leader Childrens Mucus Relief Cough® (as a combination product containing Dextromethorphan, Guaifenesin)see Guaifenesin
- Leader Intense Cough Reliever® (as a combination product containing Dextromethorphan, Guaifenesin)see Guaifenesin
- Leader Mucus Relief®see Guaifenesin
- Leader Tussin DM Max® (as a combination product containing Dextromethorphan, Guaifenesin)see Guaifenesin
- Lecanemab-irmb Injection
- Ledercillin VK®see Penicillin V Potassium
- Ledipasvir and Sofosbuvir
- Leena® (as a combination product containing Ethinyl Estradiol, Norethindrone)see Estrogen and Progestin (Oral Contraceptives)
- Lefamulin
- Lefamulin Injection
- Leflunomide
- Legatrin PM® (as a combination product containing Acetaminophen, Diphenhydramine)see Diphenhydramine
- Lemborexant
- Lemtrada®see Alemtuzumab Injection (Multiple Sclerosis)
- Lenacapavir Injection
- Lenacapavir Oral
- Lenalidomide
- Leniolisib
- Lenmeldy®see Atidarsagene Autotemcel Injection
- Lenvatinib
- Lenvima®see Lenvatinib
- Lepargylic acidsee Azelaic Acid Topical
- Leqembi®see Lecanemab-irmb Injection
- Leqselvi®see Deuruxolitinib
- Leqvio®see Inclisiran injection
- Lescol®see Fluvastatin
- Lescol® XLsee Fluvastatin
- Lesinurad
- Lessina® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Letairis®see Ambrisentan
- Letermovir
- Letermovir Injection
- Letrozole
- Leucovorin
- Leucovorin Injection
- Leukeran®see Chlorambucil
- Leukine®see Sargramostim
- Leuprolide Injection
- Leuprorelin Acetatesee Leuprolide Injection
- Leurocristine Sulfatesee Vincristine Lipid Complex Injection
- Leurocristine Sulfatesee Vincristine Injection
- Leustatin®see Cladribine Injection
- Levacet® (as a combination product containing Acetaminophen, Aspirin, Caffeine, Salicylamide)see Aspirin
- Levalbuterol Oral Inhalation
- Levall® (as a combination product containing Carbetapentane, Guaifenesin, Phenylephrine)see Phenylephrine
- Levaquin®see Levofloxacin
- Levaquin® I.V.see Levofloxacin Injection
- Levatol®see Penbutolol
- Levemir®see Insulin Detemir (rDNA Origin) Injection
- Levetiracetam
- Levetiracetam Injection
- Levitra®see Vardenafil
- Levlen® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Levlite® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Levo-Dromoran®see Levorphanol
- Levo-T®see Levothyroxine
- Levobunolol Ophthalmic
- Levocetirizine
- Levodopa and Carbidopa
- Levodopa Oral Inhalation
- Levofloxacin
- Levofloxacin Injection
- Levoketoconazole
- Levoleucovorin Injection
- Levomilnacipran
- Levonorgestrel
- Levonorgestrel Intrauterine System
- Levora® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Levorphanol
- Levothroid®see Levothyroxine
- Levothyroxine
- Levoxyl®see Levothyroxine
- Levsin®see Hyoscyamine
- Levulan® Kerastick®see Aminolevulinic Acid Topical
- Lexapro®see Escitalopram
- Lexette®see Halobetasol Topical
- Lexiva®see Fosamprenavir
- Lexxel® (as a combination product containing Enalapril, Felodipine)see Enalapril
- Lexxel® (as a combination product containing Enalapril, Felodipine)see Felodipine
- Lialda®see Mesalamine
- Libervant®see Diazepam Buccal
- Librax®see Chlordiazepoxide and Clidinium
- Librax® (as a combination product containing Clidinium, Chlordiazepoxide)see Chlordiazepoxide
- Librelease®see Chlordiazepoxide
- Libritabs®see Chlordiazepoxide
- Librium®see Chlordiazepoxide
- Libtayo®see Cemiplimab-rwlc Injection
- Licart ® Topical Systemsee Diclofenac Transdermal Patch
- Licide® (as a combination product containing Piperonyl Butoxide, Pyrethrin)see Pyrethrin and Piperonyl Butoxide Topical
- Licon®see Fluocinonide Topical
- Lidex®see Fluocinonide Topical
- Lidex-E®see Fluocinonide Topical
- Lidocaine Transdermal Patch
- Lidocaine Viscous
- Lidocare®see Lidocaine Transdermal Patch
- Lidoderm®see Lidocaine Transdermal Patch
- Lifileucel Injection
- Lifitegrast Ophthalmic
- Likmezsee Metronidazole
- Liletta®see Levonorgestrel Intrauterine System
- Limbitrol® (as a combination product containing Amitriptyline, Chlordiazepoxide)see Chlordiazepoxide
- Limbitrol® (as a combination product containing Amitriptyline, Chlordiazepoxide)see Amitriptyline
- Linaclotide
- Linagliptin
- Lindane
- Linezolid
- Linezolid Injection
- Linzess®see Linaclotide
- Lioresal®see Baclofen
- Liothyronine
- Liotrix
- Lipancreatinsee Pancrelipase
- Lipidil®see Fenofibrate
- Lipitor®see Atorvastatin
- Lipo-Hepin®see Heparin Injection
- Lipofen®see Fenofibrate
- Lipqozet® (as a combination product containing Atorvastatin, Ezetimibe)see Atorvastatin
- Liptruzet® (as a combination product containing Atorvastatin, Ezetimibe)see Atorvastatin
- Liptruzet® (as a combination product containing Atorvastatin, Ezetimibe)see Ezetimibe
- Liqrev®see Sildenafil
- LiquADD®see Dextroamphetamine
- Liquaemin®see Heparin Injection
- Liqufruta®see Guaifenesin
- Liquibid D-R® (as a combination product containing Guaifenesin, Phenylephrine)see Phenylephrine
- Liquibid PD-R® (as a combination product containing Guaifenesin, Phenylephrine)see Phenylephrine
- Liquid Pedvax HIB®see Haemophilus influenzae type b (Hib) Vaccine
- Liraglutide Injection
- Lisdexamfetamine
- Lisinopril
- Lisinopril and Hydrochlorothiazide
- Lisocabtagene Maraleucel Injection
- Listerine®see Fluoride
- Litfulo®see Ritlecitinib
- Lithium
- Lithobid®see Lithium
- Little Noses®see Phenylephrine Nasal Spray
- Little Remedies Little Colds Mucus Relief Expectorant Melt Aways®see Guaifenesin
- Livalo®see Pitavastatin
- Livdelzi®see Seladelpar
- Live Shingles (Zoster) Vaccine (ZVL)
- Livmarli®see Maralixibat
- Lixisenatide Injection
- Lo/Ovral® (as a combination product containing Ethinyl Estradiol, Norgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Lo-Trol® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- Locholest®see Cholestyramine Resin
- Locholest® Lightsee Cholestyramine Resin
- Locoid®see Hydrocortisone Topical
- Lodine®see Etodolac
- Lodine® XLsee Etodolac
- Lodoxamide Ophthalmic
- Lodrane® (as a combination product containing Brompheniramine, Pseudoephedrine)see Pseudoephedrine
- Lodrane® D (as a combination product containing Brompheniramine, Pseudoephedrine)see Brompheniramine
- Loestrin® (as a combination product containing Ethinyl Estradiol, Norethindrone)see Estrogen and Progestin (Oral Contraceptives)
- Loestrin® Fe (as a combination product containing Ethinyl Estradiol, Norethindrone)see Estrogen and Progestin (Oral Contraceptives)
- Lofexidine
- Logen® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- LoHist® DM (as a combination product containing Brompheniramine, Dextromethorphan, Phenylephrine)see Brompheniramine
- LoHist® PEB (as a combination product containing Brompheniramine, Phenylephrine)see Brompheniramine
- LoHist® PEB DM (as a combination product containing Brompheniramine, Dextromethorphan, Phenylephrine)see Brompheniramine
- LoHist® PSB (as a combination product containing Brompheniramine, Pseudoephedrine)see Brompheniramine
- LoHist® PSB DM (as a combination product containing Brompheniramine, Dextromethorphan, Pseudoephedrine)see Brompheniramine
- LoHist-D® (as a combination product containing Chlorpheniramine, Pseudoephedrine)see Pseudoephedrine
- Lohist-DM® (as a combination product containing Brompheniramine, Dextromethorphan, Phenylephrine)see Phenylephrine
- LoHist-PD® (as a combination product containing Brompheniramine, Pseudoephedrine)see Pseudoephedrine
- LoHist-PEB® (as a combination product containing Brompheniramine, Phenylephrine)see Phenylephrine
- LoHist-PEB-DM® (as a combination product containing Brompheniramine, Dextromethorphan, Phenylephrine)see Phenylephrine
- LoHist-PSB® (as a combination product containing Brompheniramine, Pseudoephedrine)see Pseudoephedrine
- LoHist-PSB-DM® (as a combination product containing Brompheniramine, Dextromethorphan, Pseudoephedrine)see Pseudoephedrine
- Lokelma®see Sodium Zirconium Cyclosilicate
- Lomanate® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- Lomitapide
- Lomotil® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- Lomustine
- Lonafarnib
- Lonapegsomatropin-tcgd injection
- Loncastuximab Tesirine-lpyl Injection
- Lonhala Magnair®see Glycopyrrolate Oral Inhalation
- Loniten®see Minoxidil
- Lonox® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- Lonsurf®see Trifluridine and Tipiracil
- Loperamide
- Lopid®see Gemfibrozil
- Lopinavir and Ritonavir
- Lopressidone® (as a combination product containing Chlorthalidone, Metoprolol)see Chlorthalidone
- Lopressidone® (as a combination product containing Chlorthalidone, Metoprolol)see Metoprolol
- Lopressor®see Metoprolol
- Lopressor® HCT (as a combination product containing Metoprolol, Hydrochlorothiazide)see Hydrochlorothiazide
- Lopressor® HCT (as a combination product containing Metoprolol, Hydrochlorothiazide)see Metoprolol
- Lopurin®see Allopurinol
- Loqtorzi®see Toripalimab-tpzi Injection
- Loratadine
- Lorazepam
- Lorazepam Intensol®see Lorazepam
- Lorbrena®see Lorlatinib
- Lorcaserin
- Lorcet® (as a combination product containing Acetaminophen, Hydrocodone)see Hydrocodone Combination Products
- Lorcet Plus® (as a combination product containing Acetaminophen, Hydrocodone)see Hydrocodone Combination Products
- Loreev XR®see Lorazepam
- Lorlatinib
- Loroxide®see Benzoyl Peroxide Topical
- Lortab® (as a combination product containing Acetaminophen, Hydrocodone)see Hydrocodone Combination Products
- Lortab® ASA (as a combination product containing Aspirin, Hydrocodone)see Aspirin
- Lortuss DM® (as a combination product containing Dextromethorphan, Doxylamine, Pseudoephedrine)see Pseudoephedrine
- Lortuss EX® (as a combination product containing Codeine, Guaifenesin, Pseudoephedrine)see Pseudoephedrine
- Lortuss HC® (as a combination product containing Hydrocodone, Phenylephrine)see Phenylephrine
- Lortuss LQ® (as a combination product containing Doxylamine, Pseudoephedrine)see Pseudoephedrine
- Loryna® (as a combination product containing Drospirenone, Ethinyl Estradiol)see Estrogen and Progestin (Oral Contraceptives)
- Losartan
- LoSeasonique® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- LoSo® Prep® Kit (as a combination product containing Bisacodyl, Bisacodyl Rectal, Magnesium Citrate)see Bisacodyl Rectal
- Losospan® Plus (as a combination product containing Magaldrate, Simethicone)see Simethicone
- Lotemax®see Loteprednol Ophthalmic
- Lotemax® SMsee Loteprednol Ophthalmic
- Lotensin®see Benazepril
- Lotensin® HCT see Benazepril and Hydrochlorothiazide
- Loteprednol Ophthalmic
- Lotrel® (see Amlodipine and Benazepril
- Lotrel® (as a combination product containing Amlodipine, Benazepril)see Amlodipine
- Lotrel® (as a combination product containing Benazepril, Amlodipine)see Benazepril
- Lotrimin® AF Athlete's Foot Creamsee Clotrimazole Topical
- Lotrimin® AF Athlete's Foot Powdersee Miconazole Topical
- Lotrimin® AF Athlete's Foot Spray Deodorant Powdersee Miconazole Topical
- Lotrimin® AF Athlete's Foot Spray Liquidsee Miconazole Topical
- Lotrimin® AF Athlete's Foot Spray Powdersee Miconazole Topical
- Lotrimin® AF Jock Itch Creamsee Clotrimazole Topical
- Lotrimin® AF Jock Itch Spray Powdersee Miconazole Topical
- Lotrimin® AF Ringworm Creamsee Clotrimazole Topical
- Lotrimin® Solutionsee Clotrimazole Topical
- Lotrisone® (as a combination product containing Betamethasone, Clotrimazole)see Betamethasone Topical
- Lotrisone® Cream (as a combination product containing Betamethasone, Clotrimazole)see Clotrimazole Topical
- Lotrisone® Lotion (as a combination product containing Betamethasone, Clotrimazole)see Clotrimazole Topical
- Lotronex®see Alosetron
- Lovastatin
- Lovaza® (formerly available as Omacor®)see Omega-3 Fatty Acids
- Lovenox®see Enoxaparin Injection
- Lovotibeglogene autotemcel Injection
- Low Sodium Plus® (as a combination product containing Aluminum Hydroxide, Magnesium Hydroxide, Simethicone)see Simethicone
- Low-Ogestrel® (as a combination product containing Ethinyl Estradiol, Norgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Low-Quel® (as a combination product containing Atropine, Diphenoxylate)see Diphenoxylate
- Lowsium Plus® (as a combination product containing Magaldrate, Simethicone)see Simethicone
- Loxapine
- Loxitane®see Loxapine
- Lozol®see Indapamide
- Lubiprostone
- Lucemyra®see Lofexidine
- Lucentis®see Ranibizumab Injection and Implant
- Ludent®see Fluoride
- Ludiomil®see Maprotiline
- Luliconazole Topical
- Lumacaftor and Ivacaftor
- Lumakras®see Sotorasib
- Lumateperone
- Lumigan®see Bimatoprost Ophthalmic
- Lumoxiti®see Moxetumomab Pasudotox-tdfk Injection
- Lumryz®see Sodium Oxybate
- Lunelle® (as a combination product containing Estradiol, Medroxyprogesterone)see Medroxyprogesterone Injection
- Lunesta®see Eszopiclone
- Lunsumio®see Mosunetuzumab-axgb Injection
- Lupaneta Pack® (as a combination product containing Leuprrolide, Norethindrone)see Leuprolide Injection
- Lupkynis®see Voclosporin
- Lupron®see Leuprolide Injection
- Lupron Depot®see Leuprolide Injection
- Lupron Depot-PED®see Leuprolide Injection
- Lurasidone
- Lurbinectedin Injection
- Lusair® (as a combination product containing Guaifenesin, Phenylephrine)see Phenylephrine
- Lusair® (as a combination product containing Guaifenesin, Phenylephrine)see Guaifenesin
- Lusonal®see Phenylephrine
- Lusonex® (as a combination product containing Guaifenesin, Phenylephrine)see Phenylephrine
- Luspatercept-aamt Injection
- Lusutrombopag
- Lutera® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Lutetium Lu 177 Vipivotide Tetraxetan Injection
- Luvox®see Fluvoxamine
- Luvox® CRsee Fluvoxamine
- Luxiq®see Betamethasone Topical
- Luzu®see Luliconazole Topical
- LY-CoV1404, LY3853113see Bebtelovimab Injection
- Lybalvi®see Olanzapine and Samidorphan
- Lybrel® (as a combination product containing Ethinyl Estradiol, Levonorgestrel)see Estrogen and Progestin (Oral Contraceptives)
- Lyfgenia®see Lovotibeglogene autotemcel Injection
- Lygen®see Chlordiazepoxide
- Lymphir® (denileukin diftitox-cxdl)see Denileukin Diftitox Injection
- Lynparza®see Olaparib
- Lypqozet® (as a combination product containing Atorvastatin, Ezetimibe)see Ezetimibe
- Lyrica®see Pregabalin
- Lyrica CR®see Pregabalin
- Lysodren®see Mitotane
- Lysteda®see Tranexamic Acid
- Lytgobi®see Futibatinib
- Lyumjev®(insulin lispro-aabc)see Insulin Lispro Injection