Fildena 100 is a medication used to treat erectile dysfunction (ED) in men. It contains sildenafil citrate as its active ingredient, which is a phosphodiesterase type 5 (PDE5) inhibitor. Here's how Fildena 100 works and some key information about it:

Mechanism of Action: Sildenafil citrate, the active ingredient in Fildena 100 mg, works by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This enzyme is responsible for breaking down cyclic guanosine monophosphate (cGMP), a chemical that helps relax smooth muscles in the blood vessels of the penis. When PDE5 is inhibited, cGMP levels increase, leading to vasodilation (widening of blood vessels) and improved blood flow to the penis. This increased blood flow can help men with ED achieve and maintain erections during sexual stimulation.

Usage: Fildena 100 is typically taken orally with water, about 30 minutes to 1 hour before anticipated sexual activity. It's important to note that Fildena 100 is not an aphrodisiac and does not automatically cause erections. Sexual arousal and stimulation are still necessary for the medication to work effectively.

Dosage: The recommended dosage of Fildena 100 can vary based on individual response and the severity of ED. It's important to follow your healthcare provider's instructions regarding dosage and usage.

Onset and Duration: Fildena 100 starts to work within 30 to 60 minutes after ingestion, although individual response times may vary. The effects of Fildena 100 can last for up to 4 to 6 hours, during which time sexual stimulation can lead to erections.

Precautions: Before using Fildena 100, inform your healthcare provider about any medical conditions you have, especially if you have a history of cardiovascular disease, low blood pressure, liver or kidney problems, or if you are taking other medications, particularly nitrates or alpha-blockers. Avoid consuming large amounts of alcohol or fatty meals before taking Fildena 100, as they may reduce its effectiveness.