It could be due to a so-called "rebound effect" in which the body begins creating clots again.
But researchers say more study is needed.
Study shows risk if use of Plavix stopped
(KABC) A study in the Journal of the American Medical Association looked at more than 3,000 veterans taking Plavix following a heart attack. They were monitored three, six and nine months after discontinuing its use. Sixty percent of subsequent heart attacks and deaths happened in the first three months.
