Viagra 100mg

Allergic reactions--skin rash, itching, hives, swelling of the face, lips, tongue, or throatAbout this medicationSILDENAFIL (sil DEN a fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection.How should you use this medication?Take this medication by mouth with a glass of water. Follow the directions on the prescription label. The dose is usually taken 1 hour before sexual activity. You should not take the dose more than once per day. Do not take your medication more often than directed. Talk to your care team about the use of this medication in children. This medication is not used in children for this condition.What are the possible side effects of this medicine?Side effects that you should report to your care team as soon as possible:Allergic reactions--skin rash, itching, hives, swelling of the face, lips, tongue, or throatHearing loss or ringing in earsHeart attack--pain or tightness in the chest, shoulders, arms, o