Filitra (which contains Vardenafil, a PDE5 inhibitor) to ensure its safe use. These restrictions generally involve certain health conditions, medications, and lifestyle factors that can interact with Filitra and lead to potentially harmful effects. 1. Nitrate Medications: Filitra should never be taken with nitrate medications (e.g., nitroglycerin, isosorbide mononitrate) often prescribed for chest pain or heart conditions. The combination can cause a dangerous drop in blood pressure that can lead to severe complications, such as fainting, dizziness, or even a heart attack. 2. Heart Conditions: If you have a history of heart disease, such as angina (chest pain), heart attack, stroke, or arrhythmia (irregular heartbeats), you should consult your doctor before taking Filitra.  can lower blood pressure slightly, so it is essential to ensure that this does not worsen any underlying heart conditions. 3. Liver or Kidney Issues: If you have liver disease or kidney problems, your body may process Filitra more slowly, leading to higher levels of the medication in the bloodstream, which could increase the risk of side effects. Your doctor may recommend a lower dose or an alternative treatment. 4. Blood Pressure Concerns: Filitra can cause a temporary lowering of blood pressure. If you already have low blood pressure, you should use caution and consult your healthcare provider before starting this medication. It should also be used cautiously in individuals with high blood pressure, especially if it's not well controlled. 5. Vision or Eye Problems: Filitra has been associated with rare cases of vision changes, such as blurred vision or seeing a blue tinge. If you experience any changes in vision or other eye-related issues, stop using Filitra and seek immediate medical attention. Sudden vision loss in one or both eyes is a very rare but serious side effect, and if it occurs, you must seek medical help immediately.