Joseph Browder 
Blood and Chocolate [EPUB ebook] 

After participating in a new drug trial, Frances Joiner thinks her days of anger issues and hallucinations are behind her, and she can finally lead a normal life. Unfortunately, now a harmless piece of chocolate transforms her into an eight foot grizzly bear. An eight foot bank robbing grizzly bear. With the FBI hot on her heels and the realisation that she may not be the weirdest thing in town, can Frances face her fears, separate reality from hallucination, and accept who or what she really is?