The NHS website

Tadalafil: a medicine for erection problems, pulmonary hypertension and enlarged prostate

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

NHS medicines information on who can take tadalafil and who may not be able to take it.

NHS medicines information on possible interactions with tadalafil and other medicines, herbal remedies and supplements.

NHS medicines information on side effects of tadalafil and what you can do to cope.

NHS medicines information on tadalafil and whether you can take it while pregnant or breastfeeding.

NHS medicines information on dosage for tadalafil, how to take it and what to do if you miss a dose or take too much.

NHS medicines information on tadalafil – what it's used for and key facts.