as this may cause an unsafe drop in blood pressure. [ man ] do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury seek immediate medical help for an erection lasting more than 4 hours. if you have any sudden decrease or loss in hearing or vision, stop taking cialis and call your doctor right away. [ male announcer ] ask your doctor if cialis for daily use is right for you. for a 30-tablet free trial offer, go to cialis.com. criticized for we re back. beginning tomorrow, president obama is taking off for ten days for a vacation up in martha s g away in which a time the economy is so fragile, unemployment is so high, and the credit rating has been downgraded for the first time in history. will this vacation end up hurting the president in the end or is it a temporary crisis?