Cal. PEN § 337f

(a) Any person who does any of the following is punishable by a fine not exceeding five thousand dollars ($5,000), or by imprisonment in a county jail not exceeding one year, or by imprisonment pursuant to subdivision (h) of Section 1170, or by both that fine and imprisonment:

(1) Influences, or induces, or conspires with, any owner, trainer, jockey, groom, or other person associated with or interested in any stable, horse, or race in which a horse participates, to affect the result of that race by stimulating or depressing a horse through the administration of any drug to that horse, or by the use of any electrical device or any electrical equipment or by any mechanical or other device not generally accepted as regulation racing equipment, or so stimulates or depresses a horse.

(2) Knowingly enters any horse in any race within a period of 24 hours after any drug has been administered to that horse for the purpose of increasing or retarding the speed of that horse.

(3) Willfully or unjustifiably enters or races any horse in any running or trotting race under any name or designation other than the name or designation assigned to that horse by and registered with the Jockey Club or the United States Trotting Association or willfully sets on foot, instigates, engages in or in any way furthers any act by which any horse is entered or raced in any running or trotting race under any name or designation other than the name or designation duly assigned by and registered with the Jockey Club or the United States Trotting Association.

(b) For purposes of this section, the term “drug” includes all substances recognized as having the power of stimulating or depressing the central nervous system, respiration, or blood pressure of an animal, such as narcotics, hypnotics, benzedrine or its derivatives, but shall not include recognized vitamins or supplemental feeds approved by or in compliance with the rules and regulations or policies of the California Horse Racing Board.