Filitra 20 mg (which contains Sildenafil for erectile dysfunction), you can follow these steps: 1. Check the packaging carefully: Look for clear, professional printing — no spelling mistakes or blurry text. Verify holograms, security seals, or unique codes (if present). Check the expiry date and batch number. 2. Use the manufacturer’s verification tools: Filitra is produced by Centurion Laboratories. Visit their official website and see if they offer an online verification service by entering batch or QR codes. Some manufacturers provide phone numbers or apps to verify products. 3. Look for a QR code or scratch code on the packaging: Many legitimate medicines now have QR codes or scratch-off codes to verify authenticity via a website or SMS. 4. Buy from trusted sources: Purchase from licensed pharmacies or authorized online pharmacies. Avoid unknown websites or sellers offering very low prices or no prescription. 5. Consult a pharmacist or doctor: Show the product to a pharmacist for inspection. A healthcare professional can help identify counterfeit products. If you want, I can help you find the official website or contact info for Centurion Laboratories, or guide you on what to look for on the packaging—just let me know!