- Labetalol
- Lacosamide
- Lactitol
- Lactofen
- Lactulose
- Laidlomycin Hydrochloride Hydrate
- Lamivudine
- Lamotrigine
- Lanreotide
- Lansoprazole
- Lapatinib
- Larotrectinib
- Latanoprost
- Ledipasvir
- Leflunomide
- Leminoprazole
- Lenalidomide
- Lenvatinib
- Lercanidipine
- Letermovir
- Letrozole
- Leucine
- Leuprolide
- Levalbuterol
- Levalbuterol Tartrate
- Levamisole
- Levetiracetam
- Levobunolol
- Levocabastine Hydrochloride
- Levocarnitine
- Levocetirizine
- Levocloperastine Fendizoate
- Levodopa
- Levodropropizine
- Levofloxacin
- Levofolinate
- Levomefolate
- Levomepromazine
- Levonorgestrel
- Levosalbutamol
- Levosimendan
- Levosulpiride
- Lidocaine
- Lifitegrast
- Linagliptin
- Lincomycin Hydrochloride Hydrate
- Linezolid
- Lisinopril
- Lobeglitazone
- Lofexidine
- Lopinavir
- Loratadine
- Lorazepam
- Lornoxicam
- Losartan
- Lumateperone
- Lumefantrine
- Lurasidone
- Lymecycline
