MI HB5643

Amends pharmacist generic substitution rules to change "when" to "if" for brand name drug prescriptions, allowing pharmacists discretion to dispense generically equivalent drugs at lower cost when available.

Requires pharmacists to notify purchasers and indicate on prescription labels both the brand prescribed and brand dispensed, or the generic name if the dispensed drug has no brand name.

Prohibits pharmacists from substituting opioid analgesic drugs that incorporate tamper-resistance technology unless the Michigan Board of Pharmacy has determined the substitute provides substantially similar tamper-resistance properties or the prescriber provides written, signed consent.

Requires the Michigan Board of Pharmacy to create and maintain a list of opioid analgesic drugs with tamper-resistance technology approved by the FDA based on human tampering studies or comparative abuse-resistance studies.

Defines "opioid analgesic drug" as drugs in the opioid class prescribed for moderate to severe pain or opioid dependence in immediate or extended release forms, whether alone or combined with other substances.