DEA Schedule IIV Controlled Substances

Schedule II High Potential for Abuse

Schedule II substances have a recognized medical use but present a high risk of dependence and abuse. They may lead to severe psychological or physical dependence. Prescription of these drugs is tightly controlled refills are not permitted; a new prescription is required for each fill.

Common Schedule II Drugs

Schedule III Moderate to Low Potential for Abuse

These drugs have a legitimate medical purpose and a lower potential for abuse compared with Schedule II. Abuse may lead to moderate or low physical dependence or high psychological dependence. A prescription may be refilled up to five times within six months.

Typical Schedule III Medications

• Buprenorphine (Suboxone) opioid dependence treatment.
• Ketamine anesthetic, offlabel depression therapy.
• Anabolic steroids e.g., Testosterone.
• Tylenol with codeine analgesic.
• Hydrocodone combination products (e.g., Vicodin) pain relief.

Schedule IV Low Potential for Abuse

Schedule IV substances have a relatively low risk of dependence. They are prescribed for a variety of conditions, often for longer-term use. Prescriptions may be refilled up to five times in a sixmonth period.

Common Schedule IV Drugs

• Diazepam (Valium) anxiety, muscle spasm.
• Alprazolam (Xanax) panic disorder, anxiety.
• Clonazepam (Klonopin) seizure disorders.
• Lorazepam (Ativan) anxiety, sedation.
• Zolpidem (Ambien) insomnia.
• Phenobarbital seizures.

Schedule V Lowest Potential for Abuse

These are drugs with the lowest potential for abuse relative to the other schedules. They often contain limited amounts of certain narcotics. Refills are allowed, and the regulations are the least restrictive of the controlled substance schedules.

Examples of Schedule V Products

• Cough syrups with codeine (e.g., Robitussin AC).
• Ezogabine antiepileptic (rarely prescribed).
• Loperamide (Imodium) antidiarrheal (in specific lowdose formulations).

Regulatory Aspects and Compliance

The DEA enforces regulations through the Controlled Substances Act (CSA). Key compliance points for healthcare providers, pharmacies, and manufacturers include:

1. Registration: Entities handling controlled substances must maintain a valid DEA registration.
2. Recordkeeping: Accurate logs of receipt, dispensing, and disposal are required for at least two years.
3. Security: Controlled substances must be stored in a locked, substantially constructed cabinet or safe.
4. Prescribing Rules: Schedule II prescriptions require a written or electronic order, no refills; Schedules IIIV allow limited refills.
5. Reporting: Suspected diversion must be reported to the DEA and state authorities promptly.

Impact of Misuse

Improper prescribing or diversion can result in civil and criminal penalties, including fines, loss of license, and imprisonment. The opioid crisis has highlighted the importance of vigilant monitoring, prescription drug monitoring programs (PDMPs), and patient education.