§ Regulatory & Safety
Controlled Substance
A medication regulated by the DEA under one of five schedules based on abuse potential.
Fact-checked 12 May 2026Plain-English Reference
Controlled substances (Schedules II-V) include stimulants like Adderall, benzodiazepines like Xanax, and testosterone (Schedule III). Telehealth prescribing of controlled substances has been governed by evolving DEA rules; the Ryan Haight Act and subsequent telehealth flexibilities continue to be revised.