비아그라에 사용할 수 있는 최고의 단일 전략
Shake the bottle very well for at least ten seconds ahead of Each and every use. Take out the cap by pushing it down and twisting it counter-clockwise. Press the plunger in the syringe, then insert the tip to the bottle whilst Keeping the bottle upright over a flat area. Slowly and gradually pull back again the plunger until finally the needed dose