Medicines A to Z

Aciclovir (Zovirax) Find out how aciclovir treats cold sores, chickenpox, shingles and other herpes virus infections, and how to take it.
Acrivastine NHS medicines information on acrivastine (Benadryl) – what it's used for, side effects, dosage and who can take it
Adalimumab Brand names: Humira, Amgevita, Hyrimoz, Idacio, Imraldi, Yuflyma. Find out how adalimumab treats swelling (inflammation), and how to take it.
Alendronic acid NHS medicines information on alendronic acid – what it's used for, side effects, dosage and who can take it.
Allopurinol Find out how allopurinol treats gout and how to take it.
Alogliptin Brand name: Vipidia. Find out how alogliptin treats type 2 diabetes, and how to take it.
Amitriptyline for depression NHS medicines information on amitriptyline for depression – how it works, side effects, dosage and who can take it.
Amitriptyline for pain and migraine Find out how amitriptyline treats pain and prevents migraine and how to take it.
Amlodipine Brand name: Istin. Find out how amlodipine treats high blood pressure and helps to prevent heart disease, and how to take it.
Amoxicillin NHS medicines information on amoxicillin – what it's used for, side effects, dosage and who can take it.
Anastrozole Find out how anastrozole treats and helps prevent breast cancer, and how to take it.
Apixaban Find out how apixaban helps to prevent blood clots and reduces risk of heart attacks and stroke, and how to take it.
Aripiprazole Find out how aripiprazole treats mental health conditions, including schizophrenia and bipolar disorder, and how to take it.
Aspirin for pain relief Find out more about how aspirin is used for pain relief, and how to take or use it.
Atenolol Brand name: Tenormin. Find out how atenolol treats high blood pressure (hypertension), irregular heartbeats (arrhythmia) and angina, and how to take it.
Atorvastatin Brand name: Lipitor. Find out how atorvastatin treats heart problems and how to take it.
Azathioprine Find out how azathioprine treats conditions that affect the immune system such as rheumatoid arthritis, Crohn's disease and ulcerative colitis, skin conditions such as lupus, and helps after an organ transplant, and how to take it.
Azithromycin Brand name: Zithromax. Find out how azithromycin treats infections and how to take it.
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