The NHS website

Medicines A to Z

Find out how your medicine works, how and when to take it, possible side effects and answers to your common questions.

Find out about health conditions, including their symptoms and how they're treated.

NHS medicines information on zopiclone – what it's used for, side effects, dosage and who can take it.

NHS medicines information on zolpidem – what it's used for, side effects, dosage and who can take it.

NHS medicines information on warfarin – what it’s used for, side effects, dosage and who can take it.

NHS medicines information on verapamil – what it's used for, side effects, dosage and who can take it.

NHS medicines information on venlafaxine – what it’s used for, side effects, dosage and who can take it.

NHS medicines information on varenicline – what it’s used for, side effects, dosage and who can take it.

NHS medicines information on valsartan – what it's used for, side effects, dosage and who can take it.

NHS medicines information on valproic acid – what it's used for, side effects, dosage and who can take it.