don't take viagra if you take nitrates for chest pain as it may cause an unsafe drop in blood pressure. side effects may include headache, flushing, upset stomach, and abnormal vision. to avoid long-term injury, seek immediate medical help for an erection lasting more than four hours. stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. it's time to take a deep breath... and ask your doctor if viagra is right for you. you stood in the basement gathering dust while i, sneezing, itching eyes kept you from our favorite stream. the one that runs through a field where pollen floats through the air. but now, with the strength of 24-hour zyrtec® to relieve my worst allergy symptoms, indoors and outdoors... let's go before the fish stop biting. they won't wait for us. but that's okay. zyrtec® is the fastest 24-hour allergy medicine. today, we battle wits with the trout. with zyrtec® i can love the air®. ♪ with zyrtec® i can love the air®. it doesn't look risky. i mean, phil, does this look risky to you?