# Diphenoxylate (21 CFR 1308.12(c)(8)) — Federal controlled substance schedule (I-V) by drug, with DEA code number For Diphenoxylate (21 CFR 1308.12(c)(8)), substance is Diphenoxylate; schedule is Schedule II; listed under is Opiates; dea code number is 9170; cfr citation is 21 CFR 1308.12(c)(8), recorded from its source on 2026-09-01. - **Substance:** Diphenoxylate _(verified: appears in the quote below)_ - **Schedule:** Schedule II _(verified: appears in its own passage below)_ - **Listed under:** Opiates _(verified: appears in its own passage below)_ - **DEA code number:** 9170 _(verified: appears in the quote below)_ - **CFR citation:** 21 CFR 1308.12(c)(8) _(our reading, not quoted from the source)_ ## What the source says > (8) Diphenoxylate | 9170 | ## Where each value comes from This source states these in separate places, so each value is shown with the passage that states it. ### Schedule > § 1308.12 Schedule II. ### Listed under > (c) Opiates. ## Source - https://www.ecfr.gov/current/title-21/chapter-II/part-1308 Last verified: 2026-09-01. Review by: 2026-12-30. Part of [Federal controlled substance schedule (I-V) by drug, with DEA code number](https://referencesource.org/dea-controlled-substance-schedule-by-drug/).