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PTCB Quick Reference Card
Every DEA schedule, Sig code, and conversion you need to know for the PTCE — on one printable page.
DEA Controlled Substance Schedules
| Schedule I | No accepted medical use — heroin, LSD, marijuana (federal) |
| Schedule II | High abuse potential, no refills — oxycodone, Adderall, fentanyl |
| Schedule III | Moderate potential, up to 5 refills in 6 months — Tylenol with codeine, testosterone |
| Schedule IV | Lower potential, up to 5 refills in 6 months — Xanax, Ambien, tramadol |
| Schedule V | Lowest potential, may be OTC in some states — Robitussin AC, Lomotil |
Common Sig Code Abbreviations
| qd / bid / tid / qid | Once / twice / three times / four times daily |
| ac / pc | Before meals / after meals |
| hs | At bedtime (hour of sleep) |
| prn | As needed |
| stat | Immediately |
| po / im / iv / sc | By mouth / intramuscular / intravenous / subcutaneous |
| gtt | Drop(s) |
| disp | Dispense (quantity) |
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