About tadalafil
Phosphodiesterase-5 inhibitor
Used for
- Erectile dysfunction
- Pulmonary arterial hypertension, under specialist care
- Benign prostate enlargement symptoms, usually at lower daily doses
Usual adult dose
Erectile dysfunction: 10 mg before sexual activity; may increase to 20 mg, no more than once daily. Pulmonary hypertension dosing is specialist-directed.
Common side effects
- Headache
- Indigestion
- Flushing
- Back or muscle pain
Important warnings
- Do not combine with nitrate medicines or riociguat; blood pressure may fall dangerously.
- Seek urgent care for an erection lasting over four hours or sudden vision or hearing loss.
- Use caution with heart disease, low blood pressure, or medicines that lower blood pressure.
- Sexual stimulation is required for erectile dysfunction treatment.
Pregnancy
Not indicated for use during pregnancy.
Breastfeeding
Not indicated for use while breastfeeding.
Interactions
- Nitrates, including nitroglycerin
- Riociguat
- Alpha-blockers and blood-pressure medicines
- Strong CYP3A4 inhibitors, such as ritonavir or ketoconazole
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.