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Labetalol (Normodyne, Trandate) LABETALOL HYDROCHLORIDE LACTULOSe
Lactulose (Cephulac) LAMIVUDINE Lamivudine (Epivir, 3-TC)
LAMOTRIGINE Lamotrigine (Lamictal) Lamotrigine and Oxcarbazepine
Lamotrigine and Phenobarbital Lamotrigine and Phenytoin Lamotrigine and Protease inhibitors
Lamotrigine and Rifampicin (Rifampin) Lamotrigine and Valproate LANREOTIDE ACETATE
LANSOPRAZOLE Lansoprazole (Prevacid) LANTHANUM CARBONATE
LAPATINIB DITOSYLATE LARONIDASE LATANOPROST
LEFLUNOMIDE Leflunomide and Methotrexate Leflunomide and Penicillamine
Leflunomide and Phenytoin Leflunomide and Rifampicin (Rifampin) Leflunomide and Vaccines
Leflunomide and Warfarin and other oral anticoagulants LEPIRUDIN LETROZOLE
Leucoderma Leucorrhoea Leucovorin (Wellcovorin)
LEUCOVORIN CALCIUM LEUPROLIDE ACETATE Levalbuterol (Xopenex)
LEVALBUTEROL HYDROCHLORIDE LEVETIRACETAM Levetiracetam (Keppra)
LEVODOPA (L-DOPA) Levodopa and MAOIs Levodopa and Methyldopa
Levodopa and Metoclopramide Levodopa and Penicillamine Levodopa and Phenytoin
Levodopa and Pyridoxine Levodopa and SSRIs LEVOFLOXACIN
LEVONORGESTREL-RELEASING INTRAUTERINE SYSTEM LEVORPHANOL TARTRATE Levothyroxine (Levothroid, Synthroid, Unithroid)
Levothyroxine and Phenobarbital Levothyroxine and Phenytoin Levothyroxine and Protease inhibitors
Levothyroxine and Rifampicin (Rifampin) Levothyroxine and Sevelamer Levothyroxine and SSRIs
Levothyroxine and Sucralfate Levothyroxine and Theophylline Levothyroxine and Tricyclics
Levothyroxine and Warfarin and other oral anticoagulants LEVOTHYROXINE SODIUM (T4) LIDOCAINe HYDROCHLORIDE
Lidocaine (Xylocaine) Lidocaine and Phenobarbital Lidocaine and Phenytoin
Lidocaine, liposomal (ELA-Max) LINCOMYCIN HYDROCHLORIDE LINDANE
Lindane (B-Well) LINEZOLID Linezolid
Linezolid Linezolid and MAO-B inhibitors Linezolid and MAOIs
Linezolid and Moclobemide Linezolid and Nasal decongestants Linezolid and Opioids
Linezolid and SSRIs Linezolid and Tricyclics Linezolid and Venlafaxine
LIOTHYRONINE SODIUM (T3) LIOTRIX (T3-T4) LISDEXAMFETAMINE DIMESYLATE
LISINOPRIL Lithium Lithium and Maprotiline
Lithium and Methyldopa Lithium and Metronidazole Lithium and NSAIDs
Lithium and Phenytoin Lithium and Sibutramine Lithium and SSRIs
Lithium and Theophylline Lithium and Tricyclics Lithium and Triptans
Lithium and Venlafaxine LITHIUM CARBONATE Lodoxamide (Alomide)
LOMEFLOXACIN Lomotil C-V LOMUSTINE
LOPERAMIDE Loperamide (Imodium AD) Loperamide and Protease inhibitors
Loperamide and Quinidine LOPINAVIR/RITONAVIR LORACARBEF
Loracarbef (Lorabid) LORATADINE Loratidine (Claritin) Antihistamine
LORAZEPAM Lorazepam (Ativan) (C-IV) Lortab (C-III)
LOSARTAN POTASSIUM LOVASTATIN Low-molecular-weight heparins and NSAIDs
Low-molecular-weight heparins and Ticlopidine LOXAPINE HYDROCHLORIDE LUBIPROSTONE
LYMPHOCYTE IMMUNE GLOBULIN