By API Standards
- L-Carbocisteine
- L-Valine
- Labetalol
- Lacosamide
- Lactitol
- Lamivudine
- Lamotrigine
- Lansoprazole
- Lapatinib
- Larotrectinib
- Lasmiditan
- Latanoprost
- LCQ-908
- Leflunomide
- Lenalidomide
- Lenvatinib
- Lercanidipine
- Lercanidipine Hydrochloride
- Letermovir
- Letrozole
- Levamisole
- Levetiracetam
- Levocetirizine
- Levocloperastine
- Levodopa
- Levodropropizine
- Levofloxacin
- Levomefolate
- Levonorgestrel
- Levosimendan
- Levosulpiride
- Levothyroxine
- Lidocaine
- Lignocaine
- Linagliptin
- Lincomycin
- Linezolid
- Liothyronine
- Lisdexamfetamine
- Lisinopril
- Lixisenatide
- Lomefloxacin
- Loperamide
- Loratadine
- Lorlatinib
- Lornoxicam
- Losartan
- Losartan Potassium
- Loteprednol
- Lovastatin
- Loxoprofen
- Lubiprostone
- Luliconazole
- Lumateperone
- Lumefantrine
- Lurasidone
- Lurasidone Hydrochloride
- Lutidine
- Lymecycline
- Lysine