Tadalista 40 mg, a medication containing tadalafil, may cause side effects such as headache, dizziness, back pain, indigestion, nasal congestion, or muscle aches. If you experience mild symptoms, they typically resolve within a few hours. Stay hydrated, avoid alcohol, and refrain from heavy meals before taking the pill to minimize discomfort. For dizziness, avoid sudden movements and rest if needed. If you experience serious side effects such as chest pain, vision changes, or prolonged erection (priapism), seek immediate medical attention. Always consult your doctor before starting or continuing the medication, especially if you have heart, liver, or kidney conditions. Never exceed the prescribed dose.