Practice of Chiropractic Medicine; Revises definition of term "practice of chiropractic medicine"; authorizes chiropractic physicians to possess, prescribe, & administer vitamins, nutrient preparations, homeopathic remedies, dietary supplements, & epinephrine by specified means; requires chiropractic physicians to be certified by Board of Chiropractic Medicine to administer by injection vitamins, nutrient preparations, homeopathic remedies, dietary supplements, & epinephrine; provides requirements for certification program; authorizes licensed pharmacists to fill, compound, or dispense certain nutritional prescriptions for licensed chiropractic physicians under certain circumstances.