C-III
Medical abbreviation · Pharmacy
| Stands for | Schedule III controlled substance |
|---|---|
| Categories | Medical |
C-III stands for Schedule III controlled substance, a pharmacy abbreviation.
Federal class for drugs with less abuse potential than Schedules I and II, including codeine combinations with up to 90 mg per dose unit (such as Tylenol with Codeine No. 3), buprenorphine, ketamine, testosterone and anabolic steroids.
Example: Buprenorphine-naloxone is C-III, so the patient may get refills.
Usage notes
Schedule III and IV prescriptions may be refilled up to five times within six months of the date written. Since the X-waiver requirement was eliminated at the end of 2022, any DEA-registered practitioner with Schedule III authority can prescribe buprenorphine for opioid use disorder. Also written CIII.
Related abbreviations
More pharmacy abbreviations
- BP – British Pharmacopoeia
- BPMH – Best possible medication history
- BTC – Behind the counter
- BUD – Beyond-use date
- C-I – Schedule I controlled substance
- C-II – Schedule II controlled substance
- C-IV – Schedule IV controlled substance
- C-V – Schedule V controlled substance
- CACI – Compounding aseptic containment isolator
- cap – Capsule
- CD – Controlled delivery
- CDTM – Collaborative drug therapy management
See all 134 pharmacy abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.