As most of you know, pop icon Micahel Jackson passed away after a possible prescription drug overdose two weeks ago.

It turns out that his sister Janet Jackson was also addicted to painkillers. Dr. Allan Metzger of Beverly Hills was reprimanded by the board of medicine in September 2000 for writing prescriptions for Janet in her chef’s name.

According to TMZ.com, the letter states, “You engaged in fraudulent medical practice based on prescriptions written for an international entertainer, using a false/fictitious name.” TMZ identified the entertainer as Janet Jackson.

Dr. Metzger told TMZ he simply prescribed diuretics (water pills) and a Hepatitis B injection in the late 80s for Janet, who may have been using the diuretics as a dangerous substitution for dieting. But the board of medicine usually doesn’t threaten a doctor’s license for writing scripts for water pills and a shot.

So it’s safe to assume that Janet was also hooked on prescription meds like her brother.

Dr. Metzger is an autoimmune disease specialist. Supposedly Michael Jackson had lupus in addition to the skin disease vitiligo, which we sincerely doubt. Dr. Metzger traveled with Jackson during the HIStory Tour in 1996.