Viagra

Viagra is a medication used to treat erectile dysfunction (ED) in men. Its active ingredient is sildenafil citrate, which works by relaxing the blood vessels in the penis and allowing for increased blood flow. This results in a firmer and longer-lasting erection during sexual activity.

Viagra is taken orally about 30 minutes to an hour before sexual activity, and is available in different strengths, ranging from 25mg to 100mg. The effects of Viagra can last for up to 4 hours, and it should not be taken more than once a day.

Viagra should only be used under the guidance of a healthcare provider, as it can interact with other medications and cause side effects. Common side effects may include headache, upset stomach, back pain, muscle aches, flushing, and stuffy or runny nose. More serious side effects, such as sudden vision loss or hearing loss, chest pain, or an erection that lasts longer than 4 hours (priapism), are rare but can occur.

Overall, Viagra has been shown to be an effective treatment option for ED in men. However, it is important to discuss any potential risks and benefits with a healthcare provider, and to follow the prescribing instructions carefully. Viagra does not protect against sexually transmitted diseases (STDs) and should be used in combination with other safe sex practices.