Cenforce 50, the most reliable route is laboratory testing rather than relying only on the packaging. Government testing: In India, CDSCO (Central Drugs Standard Control Organization) operates statutory drug-testing laboratories that perform analytical quality control of medicines. Independent laboratory: You can submit a tablet to a NABL-accredited pharmaceutical testing laboratory and request Cenforce 50  for sildenafil identity, assay (actual amount), and related impurities/degradation products. Manufacturer verification: Centurion Laboratories lists Cenforce 50 among its products. You can also ask the manufacturer to confirm the batch/lot number, manufacturing date, and certificate of analysis (COA). If you're in India, I can find a NABL-accredited lab near you that accepts individual medicine samples for testing. To do that, please share your city/state (your device location is currently unavailable).