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Controlled Substances
The Controlled Substance Act (CSA) (21 U.S.C. 801) places all substances that are regulated under existing federal law, into one of five schedules. This placement is based upon the substance’s medical use, potential for abuse, and safety or dependence liability.

Federal Controlled Substance Schedule

* NH RSA 318-B-1-c designated Flunitrazepam, marketed under the trade name rohypnol, as meeting the criteria for placement on schedule I of controlled drugs. Flunitrazepam shall be scheduled as a schedule I controlled drug. Source. 1998, 359:1, eff. June 26, 1998. 2005, 177:138, eff. July 1, 2005. Gamma Hydroxy Butryl (GBH) was previously included in the NH RSA, but was removed when it was added to the federal schedule in 2000.

Schedule I
The drug or other substance has a high potential for abuse and has no currently accepted medical use in treatment in the United States. There is a lack of accepted safety for use of the drug or other substance under medical supervision.

  • Examples of Schedule I substances include heroin, lysergic acid diethylamide (LSD), marijuana, and methaqualone.

Schedule II
The drug or other substance has a high potential for abuse and has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions. Abuse of the drug or other substance may lead to severe psychological or physical dependence.

  • Examples of Schedule II substances include morphine, phencyclidine (PCP), cocaine, methadone, and methamphetamine.

Schedule III
The drug or other substance has less potential for abuse than the drugs or other substances in schedules I and II and has a currently accepted medical use in treatment in the United States. Abuse of the drug or other substance may lead to moderate or low physical dependence or high psychological dependence.

  • Anabolic steroids, codeine and hydrocodone with aspirin or Tylenol ®, and some barbiturates are examples of Schedule III substances.

Schedule IV
The drug or other substance has a low potential for abuse relative to the drugs or other substances in Schedule III and has a currently accepted medical use in treatment in the United States. Abuse of the drug or other substance may lead to limited physical dependence or psychological dependence relative to the drugs or other substances in Schedule III.

  • Examples of drugs included in schedule IV are Darvon®, Talwin®, Equanil®, Valium®, and Xanax®.

Schedule V
The drug or other substance has a low potential for abuse relative to the drugs or other substances in Schedule IV and has a currently accepted medical use in treatment in the United States. Abuse of the drug or other substances may lead to limited physical dependence or psychological dependence relative to the drugs or other substances in Schedule IV.

  • Cough medicines with codeine are examples of Schedule V drugs.

 
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