Filitra 10 (Vardenafil) is a medication commonly used to treat erectile dysfunction (ED). Like other similar medications in the PDE5 inhibitor class, such as Viagra (Sildenafil) or Cialis (Tadalafil), Filitra 10 works by increasing blood flow to the penis. Headaches are a common side effect of Filitra 10, and they can occur for a few reasons: Blood Flow Changes: The medication increases blood flow, which can affect the blood vessels in the brain. This can sometimes cause a headache as a result of the changes in vascular pressure. Low Blood Pressure: Filitra 10 can cause a drop in blood pressure, particularly when combined with other medications like nitrates. This drop in blood pressure may trigger headaches. Dehydration: As with many medications, Filitra 10 can cause dehydration, which can lead to headaches, especially if you’re not drinking enough water. Overuse or Sensitivity: If someone takes too much of the medication or is particularly sensitive to its effects, headaches can be more pronounced. Headaches usually subside within a few hours after taking the medication, but if they persist or become severe, it’s important to consult a healthcare provider. If you're combining Filitra with other medications or have underlying health issues, make sure to talk to a doctor to minimize side effects.