It inhibits the enzyme PDE5, enhancing blood flow during sexual stimulation and facilitating firmness.

Effects typically begin within 45-60 minutes and can last up to 48 hours.

Yes, it can be taken with or without food. However, heavy or high-fat meals might delay its onset.

Common side effects include headache, indigestion, back pain, muscle aches, flushing, and nasal congestion. These usually resolve within a few hours.

Individuals taking nitrates (e.g., nitroglycerin) or those with significant heart conditions should avoid this medication due to the risk of a severe drop in blood pressure.

While moderate alcohol consumption may not significantly impact effectiveness, excessive drinking can increase the risk of side effects such as dizziness or low blood pressure. It's advisable to limit alcohol intake when planning to use this medication.

Consult your doctor to determine the appropriate dosage and frequency for your situation.

Yes, this is a prescription-only medication. A healthcare professional will assess your health condition and determine if it's suitable for you before prescribing it.

Taking more than the prescribed dose can increase the likelihood of adverse effects such as headaches, dizziness, indigestion, or prolonged erections (priapism), which require immediate medical attention. Always adhere to your doctor's dosing instructions.

This medication can interact with certain drugs, especially nitrates (used for chest pain) and alpha-blockers (used for high blood pressure or prostate conditions), leading to potentially dangerous drops in blood pressure. Inform your doctor about all medications and supplements you're taking to ensure safety.

Store the tablets in their original packaging at room temperature, away from moisture and heat. Keep them out of reach of children and pets.