Taking double the dosage of Fildena Chewable 100 mg significantly increases the risk of experiencing adverse reactions. Fildena is a medication used to treat erectile dysfunction, containing sildenafil citrate as its active ingredient. Doubling the dosage means doubling the amount of sildenafil citrate consumed, which can lead to intensified side effects and potentially serious health risks. Common side effects of sildenafil citrate include headache, flushing, dizziness, nasal congestion, blurred vision, and indigestion. These side effects may become more severe when taking a higher dosage. Additionally, doubling the dosage increases the risk of more serious side effects such as priapism (a prolonged and painful erection), sudden vision loss, hearing loss, and cardiovascular events like heart attack or stroke. It's crucial to always follow the prescribed dosage instructions provided by your healthcare provider or pharmacist. Taking more than the recommended dosage of any medication can be dangerous and may require immediate medical attention. If you have concerns about your medication or experience any adverse reactions, consult your healthcare provider promptly.