Tadalafil common side effects include: Mild headache, flushing, or nasal congestion. Rarely, it can cause visual disturbances (e.g., changes in color perception or blurred vision) or priapism (a prolonged, painful erection requiring immediate medical attention)
Paroxetine common side effects include: Drowsiness, dry mouth, mild nausea, dizziness, and sweating.
Serotonin Syndrome is a serious and potentially life-threatening condition that may occur when Paroxetine is combined with other serotonergic agents (e.g., triptans, SSRIs, SNRIs, MAO inhibitors, or St. John’s Wort). Signs of Serotonin Syndrome: Agitation or restlessness, confusion, rapid heart rate and high blood pressure, muscle rigidity or twitching, heavy sweating, fever, shivering, or tremors.
**If Serotonin Syndrome is suspected, discontinue use immediately and seek emergency medical attention *