Article 3. Defenses of California Vehicle Code >> Division 11.5. >> Chapter 4. >> Article 3.
The fact that any person charged with driving under the
influence of any drug or the combined influence of alcoholic
beverages and any drug in violation of Section 23152 or 23153 is, or
has been entitled to use, the drug under the laws of this state shall
not constitute a defense against any violation of the sections.