Strength: 5mg; 10mg; 20mg Package: PVC/Aluminium foil (the medicine-degree): 5mg and 10mg: 10 tablets per blister strip, 1 or 2 strips per box; 20mg: 7 tablets per blister strip, 1 or 2 strips per box Character: White to off-white tablets or film-coated tablets, White to off-white when decoated Reference Standard: Meets the requirements of State Health Bureau: WS1-(X-066)-2003Z