– ផ្ទៃក្រឡាសំណង់ លើសពី ១ ៥០០ ម២ ដល់ ២ ០០០ ម២In case you are taking sildenafil for PAH, go ahead and take missed dose the moment you try to remember it. Having said that, if it is nearly time for the next dose, skip the missed dose and go on your frequent dosing program. Do not ha