Haw. Rev. Stat. § 328-92
(a) When filling a prescription order for a drug prescribed by its brand name, a pharmacist or the pharmacist's authorized agent shall:
(3) Inform the consumer of the consumer's right to refuse substitution.
The pharmacist shall substitute an equivalent generic drug product or an interchangeable biological product if the practitioner does not prohibit substitution under subsection (b), and the substitute equivalent generic drug product or interchangeable biological product results in a savings. The pharmacist shall not substitute if the consumer refuses.
(b) The pharmacist shall not substitute an equivalent generic drug product or an interchangeable biological product if the practitioner indicates "brand medically necessary" or words of similar meaning on the prescription. The designation "brand medically necessary" or other similar words or phrases must be handwritten by the practitioner and shall not be preprinted or stamped on the written prescription. The pharmacist shall not substitute an equivalent generic drug product or an interchangeable biological product if a prescription is orally or electronically ordered and the practitioner or authorized employee of the practitioner indicates "brand medically necessary" or other similar words or phrases.
The pharmacist shall note the practitioner's instructions on the prescription record required to be maintained under section 328-17.7.
This subsection shall not apply when it does not comply with any federal requirement for services reimbursable by medicaid or medicare.
(d) Within two business days following the dispensing of a biological product, the dispensing pharmacist or the pharmacist's designee shall communicate to the practitioner the specific product provided to the patient, including the name of the product and the manufacturer. The communication shall be conveyed by making an entry that is electronically accessible to the practitioner through:
(e) Entry into an electronic records system as described in subsection (d) is presumed to provide notice to the prescriber. Otherwise, the pharmacist shall communicate the biological product dispensed to the prescriber using facsimile, telephone, electronic transmission, or other prevailing means, provided that communication shall not be required where:
[L 1980, c 187, pt of §1; am L 1982, c 122, §1(4); gen ch 1985; am L 1992, c 193, §§1, 5; am L 1996, c 209, §3; am L 1997, c 214, §6; am L 2003, c 56, §6; am L 2016, c 242, §4]