비아그라에 대한 자세한 참고 사항
Shake the bottle effectively for at least ten seconds just before each use. Take out the cap by pushing it down and twisting it counter-clockwise. Press the plunger from the syringe, then insert the idea in the bottle whilst Keeping the bottle upright on the flat area. Slowly and gradually pull back the plunger right until the essential dose. If th