---
title: "Is there a BAC equivalent for prescription drug DUI?"
description: "No. Unlike alcohol (per se 0.08), there is no specific numeric threshold for prescription drugs. The state must prove the drug was in your system AND that you were impaired. That makes officer..."
url: https://riduiguy.com/faq-items/is-there-a-bac-equivalent-for-prescription-drug-dui/
date: 2026-05-23
modified: 2026-05-23
author: "The RI DUI Guy"
type: faq
lang: en
---

# Is there a BAC equivalent for prescription drug DUI?

No. Unlike alcohol (per se 0.08), there is no specific numeric threshold for prescription drugs. The state must prove the drug was in your system AND that you were impaired. That makes officer observations, field tests, and Drug Recognition Expert evaluations central to the case.