OXYCODONE
Find out how oxycodone treats severe pain and how to take it.
OXYBUTYNIN
NHS medicines information on oxybutynin – what it’s used for, side effects, dosage and who can take it.
OMEPRAZOLE
Find out how omeprazole can treat your indigestion and heartburn, and how to take it.
OLMESARTAN
Brand name: Olmetec. Find out how olmesartan treats high blood pressure (hypertension) and how to take it.
OLANZAPINE
NHS medicines information on olanzapine – what it’s used for, side effects, dosage and who can take it.
NYSTATIN
Find out how nystatin treats and prevents infections caused by a fungus or yeast, including oral thrush and skin infections, and how to take or use it.
NORTRIPTYLINE
NHS medicines information on nortriptyline – how it works, side effects, dosage and who can take it.
NITROFURANTOIN
Brand names: Aratoin, Furadantin, Macrobid, Macrodantin. Find out how nitrofurantoin treats urinary tract infections (UTIs) and how to take it.
NIFEDIPINE
Brand names: Adalat, Adipine, Coracten, Fortipine, Nifedipress. Find out how nifedipine treats high blood pressure, and how to take it.
NICORANDIL
Brand name: Ikorel. Find out how nicorandil treats chest pain (angina), and how to take it.