Always consult your doctor before using Viagra or any medication. Common side effects include headache, flushing, nasal congestion, and upset stomach. These are usually mild and temporary.
Serious Side Effects
Seek immediate medical attention if you experience a prolonged erection (priapism) lasting more than four hours, sudden vision loss, or hearing loss. These are rare but serious side effects requiring prompt medical care.
Medication Interactions
Viagra can interact negatively with certain medications, particularly nitrates used to treat chest pain. This combination can cause a dangerous drop in blood pressure. Inform your doctor about all medications, supplements, and herbal remedies you are taking. This includes prescription drugs, over-the-counter medications, and recreational drugs. Be open and honest to ensure safe usage.
Other Considerations
Heart conditions: Viagra may not be suitable for individuals with certain heart conditions. Discuss your heart health with your physician before using this medication. High or low blood pressure: Blood pressure irregularities can influence how Viagra affects you. Your doctor will determine if it’s appropriate for you. Liver or kidney problems: If you have impaired liver or kidney function, your doctor might adjust the dosage or recommend an alternative.
Alcohol and Viagra
Avoid excessive alcohol consumption while taking Viagra. Alcohol can increase the risk of side effects and worsen existing conditions.


