ISOTRETINOIN GEL (ISOTREX)
NHS medicines information on isotretinoin gel (Isotrex) – this medicine has been discontinued.
LITHIUM
Find out how lithium treats mood disorders such as mania and bipolar disorder, and how to take it.
KETOCONAZOLE
NHS medicines information on ketoconazole – what it’s used for, side effects, dosage and who can use it.
LOPERAMIDE
NHS medicines information on loperamide – what it’s used for, side effects, dosage and who can take it.
LABETALOL
Brand name: Trandate. Find out how labetalol treats high blood pressure (hypertension) including high blood pressure in pregnancy and angina, and how to take it.
LORATADINE (CLARITYN)
NHS medicines information on loratadine (Clarityn) – what it’s used for, side effects, dosage and who can take it.
LACTULOSE
Brand names: Duphalac, Lactugal. Find out how lactulose treats constipation and hepatic encephalopathy, and how to take it.
LORAZEPAM
Find out how lorazepam treats anxiety and sleeping problems, and how to take it.
LAMOTRIGINE
Brand name: Lamictal. Find out how lamotrigine treats epilepsy and bipolar disorder, and how to take it.
LOSARTAN
Brand name: Cozaar. Find out how losartan treats high blood pressure (hypertension) and heart failure, and how to take it.