Sildisoft Tablets (containing sildenafil citrate) is generally considered safe when taken as prescribed. However, some individuals may experience long-term side effects, particularly if they have underlying health conditions or misuse the drug. 1. Men with Pre-existing Heart Conditions Sildenafil affects blood pressure by dilating blood vessels. In patients with angina, arrhythmias, or congestive heart failure, prolonged use may strain the heart. Risk: Chest pain, palpitations, cardiac events. 2. Those with Liver or Kidney Disease Sildenafil is metabolized by the liver and excreted by the kidneys. In individuals with impaired function, the drug may accumulate in the body, increasing toxicity risk. Risk: Higher chance of side effects like low blood pressure, vision changes, or prolonged erections. 3. Users of Nitrates or Certain Medications Combining Sildisoft with nitrate medications, alpha-blockers, or some antifungals can cause dangerous drops in blood pressure. Long-term mixing increases cumulative risk of cardiovascular complications. 4. Men Using Sildisoft Without Erectile Dysfunction Recreational or off-label use can lead to psychological dependence, tolerance, or performance anxiety. Risk: Reliance on medication for ***** confidence or function, even when not clinically needed. 5. Smokers and Those with Eye Conditions Chronic use of sildenafil has been linked (though rarely) to optic nerve damage (non-arteritic anterior ischemic optic neuropathy - NAION). Risk is higher for those with a history of eye disease, diabetes, hypertension, or high cholesterol.