Medicines to treat ED
Phosphodiesterase type-5 inhibitors
Prostaglandin analogue
Alprostadil
Alprostadil
Not given orally
Urgent medical help is prolonged erection lasting more than 4 hours (priapism)
Phosphodiesterase-5 inhibitors - Side effect
Hypotension
Flushing
Headache
Migraine
Dyspepsia
Nasal congestion
Palpitations
Tachycardia
Phosphodiesterase-5 inhibitors - C/I
MI
Unstable angina/recent stroke
Hypotension (<90 mmHg)
Taking nitrates
Phosphodiesterase-5 inhibitors - interactions
Nitrates
Alpha blockers (once stabilised, then initiate)
CCBs
Nicorandil