Iowa Code § 124B.6: Exceptions.

The requirements of sections 124B.2 through 124B.5 do not apply to any of the following:

1. A licensed pharmacist or other person authorized under chapter 155A to sell or furnish a precursor substance upon the prescription of a practitioner.

2. A practitioner who administers or furnishes a precursor substance to a patient.

3. A vendor who holds a permit issued by the board and who sells, transfers, or otherwise furnishes a precursor substance to a practitioner or a pharmacy as defined in section 155A.3.

4. A sale, transfer, furnishing, or receipt of a drug containing ephedrine, phenylpropanolamine, or pseudoephedrine or of a cosmetic containing a precursor substance if the drug or cosmetic is lawfully sold, transferred, or furnished over the counter without a prescription in accordance with chapter 126.

5. A sale, transfer, furnishing, or receipt of a chemical mixture identified as exempt by federal regulation.