If you experience adverse reactions after taking Vidalista 10 (Tadalafil 10 mg), it is important to report them to the appropriate medical and regulatory authorities. First, you should contact your healthcare provider immediately so they can assess the severity of your reaction and advise whether you should stop the medication. In India, adverse drug reactions can be reported through the Pharmacovigilance Programme of India (PvPI) by contacting the nearest Adverse Drug Reaction (ADR) Monitoring Centre or submitting details on the CDSCO (Central Drugs Standard Control Organization) website. If you are in the United States, you can report side effects to the FDA’s MedWatch program. In Europe, such reports are handled by the European Medicines Agency (EMA) or local national authorities. Reporting ensures patient safety, helps track medicine quality, and may prevent risks for others. You should also inform the pharmacy where you purchased Vidalista, especially if bought online, to help trace potential counterfeit or substandard products.