does the drug suboxone/subutex come in a rectangular, purple pill that tastes like candy?

i recently got a "suboxone" pill from a friend in order to detox from a heroin addiction. he said that he was broke so the doctor gave him a cheaper option than the normal orange, hexagonal 8 mg tablet. the pill is shaped like a rectangular box-like thing that is sweet to the taste and purple in color.
did i get ripped off, or has anyone heard of this type of suboxone?

: http://alcoholdrugstreatment.info/does-the-drug-suboxonesubutex-come-in-a-rectangular-purple-pill-that-tastes-like-candy