Filitra 40 mg (vardenafil) for erectile dysfunction (ED), there are not necessarily “stronger” tablets in a simple sense. Filitra contains vardenafil, a PDE-5 inhibitor, and 40 mg is already above the usual maximum recommended vardenafil dose used in many medical guidelines (commonly up to 20 mg once daily). Higher doses can increase side effects without reliably improving erections. Other ED medicines that some men find more effective (depending on the person) include: Tadalafil (Cialis) – longer duration (often up to about 36 hours); common doses are 10–20 mg as needed. Sildenafil (Viagra) – often effective for many men; common doses are 50–100 mg as needed. Avanafil (Stendra) – newer option with a faster onset for some men. Vardenafil (Levitra/Filitra) – same active medicine as Filitra; increasing beyond recommended doses is generally not advised. Which one works “stronger” varies by: how severe the ED is, age and health conditions, other medicines, whether the problem is blood flow, hormones, stress, or another cause. Do not combine Filitra with Viagra/Cialis/other ED pills, and avoid PDE-5 inhibitors with nitrate heart medicines because of the risk of a dangerous blood-pressure drop.