DOSAGE AND ADMINISTRATION

The combination can cause a

What side effects can this medication cause?

Sildenafil for pulmonary hypertension can also be known by the brand names Revatio and Grandipam. This medicine is available on prescription and you can also buy it from most pharmacies. It comes as standard tablets, chewable tablets, and as a liquid that you swallow. It usually takes 30 to 60 minutes for sildenafil to work for erectile dysfunction. You can take it up to 4 hours before you want to have sex. dangerous fall in your blood pressure.