Fildena 150 mg, which contains sildenafil citrate (the same active ingredient in Viagra), can cause dry mouth as one of its possible side effects, though it is not one of the most common ones. Possible Side Effects of Fildena 150 mg (Sildenafil): Common Side Effects: Headache Flushing Dizziness Nasal congestion Indigestion (dyspepsia) Less Common but Possible Side Effects: Dry mouth: This can occur due to the vasodilatory effects of sildenafil, which can lead to reduced saliva production in some users. Visual disturbances (e.g., blurred vision or color tinge) Nausea or upset stomach Serious but Rare Side Effects: Priapism (prolonged and painful erection) Sudden loss of vision or hearing Chest pain or heart attack symptoms Severe allergic reactions Why Does Dry Mouth Occur? Sildenafil works by increasing blood flow through vasodilation (widening of blood vessels), which can affect various systems in the body, including salivary glands. This may lead to a reduction in saliva production, causing the sensation of a dry mouth in some individuals. What You Can Do: Stay hydrated: Drink plenty of water to help reduce the feeling of dry mouth. Sugar-free lozenges or gum: These can help stimulate saliva production. Talk to your doctor: If dry mouth is bothersome or persistent, your doctor may suggest switching to a different dose or alternative treatment. Important: If you experience any severe side effects like chest pain, severe dizziness, or a prolonged erection, seek medical attention immediately. Always follow the prescribed dosage, and if you have concerns about side effects, consult your healthcare provider.