Common side effects may include headache, indigestion, back pain, muscle aches, flushing, and nasal congestion. Serious side effects such as sudden vision or hearing loss, and priapism (a prolonged and painful erection) are rare but require immediate medical attention.Precautions: It's important to use Tadarise 2.5 mg only as prescribed by a healthcare provider. It should not be taken... https://www.genericday.com/tadarise-2-5-mg.html