Safety information
• Viagra may cause dizziness, blurred vision, fainting or lightheadedness. Do not drive, operate machinery, or other dangerous activities until you know how you react to Viagra. Using Viagra alone, with certain medicines or with alcohol may lessen your ability to drive or perform other complex tasks.
• To minimize dizziness or lightheadedness, sit up or stand slowly when rising from a seated or lying position.
• Viagra may rarely cause a painful penile erection, which can last for long periods of time and is not related to sexual activity. If not treated immediately, this may lead to permanent erectile dysfunction or impotence (not being able to have or maintain an erection for sexual purposes).
• Do not use Viagra if your doctor has advised you to avoid sexual activity because of heart problems.
• Viagra does not protect against sexually transmitted diseases, including HIV infection. Use “safe sex” practices such as latex condoms.
• Older individuals should use Viagra with caution, because they may be more sensitive to its effects.