៤ ០០០រៀល ក្នុង ១ហិកតា ដែលលើស (ទំហំដែលលើសគិតជាចំនួនគត់ដោយមិនគិត ចំនួនក្រោយក្បៀស)If you are having sildenafil for PAH, take the missed dose when you don't forget it. Having said that, if it is sort of time for