Whitney Houston was a chronic cocaine user who had the drug in her system when she drowned in a hotel bathtub, coroner's officials said after releasing autopsy findings

Toxicology results also showed that she had marijuana, Xanax, the muscle relaxant Flexeril, and the allergy medication Benadryl in her system. The black singer also had buildup of plaque in her arteries that can restrict blood flow. Assistant Chief Coroner Ed Winter said the condition is common in drug users.