Viagra Online - Side Effects

Side effects that you should report to your prescriber or health care professional as soon as possible: changes in vision such as blurred vision, eyes being more sensitive to light, or trouble telling the difference between blue and green objects or objects having a blue color tinge to them, difficulty breathing, shortness of breath, chest pain or palpitations oprolonged erection (lasting longer than 4 hours), skin rash, itching.

Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome): diarrhea, dizziness, flushing, headache, indigestion, nasal congestion.