If you are allergic to tadalafil or any other ingredients in Vidalista 20 mg, do not take the medication. Seek medical attention immediately if you experience signs of an allergic reaction, such as rash, itching, swelling, or difficulty breathing. Tadalafil can interact with certain medications, including nitrates used to treat chest pain, alpha-blockers used to treat high blood pressure or prostate enlargement, and some antifungal or HIV medications.
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