Even over-the-counter medications — whether aspirin or allergy pills — can be included in a workplace first aid kit only if recommended by the company physician. Although Cal/OSHA rules governing most workplaces (General Industry Safety Orders, Section 3400, Medical Services and First Aid) require "adequate first aid materials "be available, the regulations don't specify the contents of the first aid kit.
Section 3400 requires that the first aid materials, “approved by the consulting physician,” be “readily available” for persons on every job. Section 3400 also requires employers to: