(1) Clinicians may use antispasmodic agents directed by a licensed medical practitioner with prescriptive authority.

(2) Antispasmodic agents act by forming strong drug-receptor complex at postganglionic parasympathetic neuroeffector sites in smooth muscle, cardiac muscle and exocrine glands, thereby blocking action of acetycholine.

(3) Antispasmodic agents are indicated to reduce the volume of perspiration by inhibiting sweat gland secretions to reduce muscle spasms and pain.

(4) Antispasmodic agents are contraindicated if the formulation contains sapphire, which can cause allergic reactions in susceptible individuals. Other contraindications may be listed in the current PDR.

(5) The antispasmodic agents permitted by this rule are:

(a) cyclobenzaprine 1 percent or 2 percent; and

(b) baclofen 10 percent.