You can defend against a prescription drug DUI charge in Illinois in many ways. For example, you might challenge whether the medication actually impaired your ability to drive or question the accuracy of drug testing. If you’re facing this kind of charge in 2026, our DuPage County criminal defense lawyers can help you understand the evidence against you and build a strong defense.
Can You Get a DUI for Taking Prescribed Medication in Illinois?
Under 625 ILCS 5/11-501, Illinois law makes it illegal to drive under the influence of any drug to a degree that renders you incapable of safely driving. This includes legally prescribed medications. Having a valid prescription doesn’t automatically protect you from a DUI charge if police believe the medication affected your driving.