Md. Code, Criminal Law § 10–103

(a) This section does not apply to:

(1) a physician licensed to practice medicine;

(2) a government unit; or

(3) the otherwise lawful conduct of business between commercial, medical, pharmaceutical, scientific, or government units.

(b) Except in accordance with a prescription written by a physician licensed to practice medicine, a person may not sell, dispense, or give to another a drug, medicine, preparation, substance, or a preparation containing a sulfonamide drug to alleviate, treat, or cure venereal disease.

(c) (1) A prescription under subsection (b) of this section shall include:

(i) the physician’s signature and address; and

(ii) the date the prescription was written.

(2) The person filling the prescription required under subsection (b) of this section:

(i) shall write on the prescription the date it was filled;

(ii) shall keep the prescription on file for at least 2 years after it was filled;

(iii) shall allow the prescription to be inspected by State and local health authorities; and

(iv) may not refill the prescription except on the order of the physician who wrote the prescription.

(d) A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding:

(1) $50 for the first violation; and

(2) $250 for each subsequent violation.