Health Minister Allan Rock is refusing to say whether his department violated patent law in ordering a large amount of anti-anthrax medication from a generic drug company. Nor would Rock say whether he will stick with generic drug manufacturer Apotex as a source of supply now that brand manufacturer Bayer says it has ample product to meet Canada's needs. He said he is not in a position to answer those questions and they will be dealt with when his officials meet with Bayer officials next week.