Vidalista 20 mg (Tadalafil) is generally safe when used as prescribed by a healthcare provider, but it may cause side effects like headaches, dizziness, or indigestion. It’s important to avoid taking Vidalista if you have certain medical conditions, such as heart problems or low blood pressure, or if you’re using medications like nitrates, as this can lead to serious health risks. Always consult a doctor to ensure it’s appropriate for you and to avoid potential drug interactions or complications.