Cialis Adverse Effects

Although side effects from tadalafil are not common, they can occur. Tell your doctor if any of these side effects are severe or do not go away:

• headache
• nausea
• upset stomach
• dizziness or lightheadedness
• flushing (feeling of warmth)
• stuffy or runny nose
• muscle aches
• back pain

If you experience any of the following symptoms, call your doctor immediately:

• rash
• painful erection
• prolonged erection (longer than 4 hours) changes in vision
• fainting
• chest pain
• itching or burning during urination