angina
"I was having trouble even functioning due to the spasms and chest pain I was experiencing.  I experienced immediate relief when prescribed Ranexa.  I can not describe the change I have experienced in quality of life.  I had a heart attack five years ago at the age of 34 from a spasm that went out of control.  I don't want that again!  The spasms are much more controlled now, and I hardly ever have one that requires Nitro."