California Code, Health and Safety Code - HSC § 110423.101

(a) A California licensed health care practitioner who is practicing within his or her scope of practice and who prescribes or dispenses, or both, dietary supplement products containing ephedrine group alkaloids in the course of the treatment of a patient under the direct care of that licensed health care practitioner, except that a licensed health care practitioner shall not prescribe or dispense dietary supplements containing ephedrine group alkaloids for purposes of weight loss, body building, or athletic performance enhancement.

(b) Dietary supplement products containing ephedrine group alkaloids that are sold or distributed directly to a licensed health care practitioner when the dietary supplement product containing ephedrine group alkaloids is used solely for the purpose of the treatment of patients under the direct care of the health care practitioner.

(c) Dietary supplement products containing ephedrine group alkaloids that are sold or distributed directly to a licensed pharmacist for resale to a patient for whom the products have been prescribed pursuant to subdivision (a).

(d) Dietary supplement products containing ephedrine group alkaloids that are not for resale in California and that are sold or distributed directly to businesses not located in California.