Filagra is a medication that contains Sildenafil citrate as its active ingredient. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor primarily used to treat erectile dysfunction (ED) in men. While Filagra is generally well-tolerated, some men may experience side effects due to individual differences, health conditions, or interactions with other medications. Different individuals may react differently to medications, including Filagra. Some men may be more sensitive to the active ingredient, leading to a higher likelihood of experiencing side effects. The dosage of Filagra used can influence the likelihood and severity of side effects. Taking higher doses than recommended or using Filagra more frequently than prescribed may increase the risk of side effects. Certain medical conditions can affect how the body metabolizes and responds to medications. Men with pre-existing health conditions, such as heart disease, liver or kidney problems, or uncontrolled hypertension, may be more prone to side effects with Filagra. Filagra may interact with certain medications, particularly nitrates used for heart conditions, leading to potentially dangerous drops in blood pressure. It is crucial to inform your healthcare provider about all the medications and supplements you are taking to avoid potential interactions. Consuming alcohol or using recreational drugs along with Filagra can increase the risk of side effects or negatively interact with the medication. Common side effects of Filagra (Sildenafil) may include headache, flushing, nasal congestion, indigestion, and visual disturbances. These side effects are often mild and temporary, and they tend to subside as the medication's effects wear off.