>> tell your doctor about your medical condition and all medications and ask if you're healthy enough for sexual activity. >> don't take cialis if you take nitrates for chest pain, as this may cause an unsafe drop in blood pressure. >> don't 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. >> 36-hour cialis or cialis for daily use. ask your doctor if cialis is right for you. you can be ready for your moment with cialis. okay, we're going to get going right away. [ announcer ] he's never met an appendix he couldn't fix! the abdomen-ator dr. bob bergowitz! yeah, woo! [ announcer ] she's the queen of clean! the 2009 surgeon of the year, dr. nancy mendelsohn! [ male announcer ] doctors and nurses are true heroes. at ge, we're working to give them the innovation, fresh thinking, and advanced technology they need to keep bringing better health to more people. are you ready, mr. randall? let's do this!