Pharmacists may not sell gunpowder to cure headaches.

RCW 70.98.170 Prohibition — Fluoroscopic x-ray shoefitting devices. The operation or maintenance of any x-ray, fluoroscopic, or other equipment or apparatus employing roentgen rays, in the fitting of shoes or other footwear or in the viewing of bones in the feet is prohibited. This prohibition does not apply to any licensed physician, surgeon, *podiatrist, or…