Chemical Abstracts Service Registry Number: 359-83-1. (Hydrochloride form 64024-15-3)
Formal Names: Fortral, Fortralgesic, Fortralin, Fortwin, Liticon, Pentgin, Sosegon, Sosenyl, Talacen, Talwin, Talwin Nx
Informal Names: 4 X 4s, Teacher, Ts, Yellow Footballs. Combination with meth-ylphenidate: Crackers, 1s & 1s, Poor Man's Heroin, Ritz & Ts, Ts & Rits, Ts & Rs, Sets. Combination with tripelennamine: Ts & Blues, Ts & Bs
Type: Depressant. See page 19
Federal Schedule Listing: Schedule IV (DEA no. 9709)
USA Availability: Prescription
Pregnancy Category: C
Uses. Pentazocine became available in the 1960s. Some authorities classify the drug as an opioid; some do not. Rather than having cross-tolerance with opiates and opioids, pentazocine can provoke a withdrawal syndrome from them. Volunteers who receive pentazocine have been uncertain about what sort of drug it is; some say it is a hallucinogen; some think they are receiving alcohol.
Pentazocine has about the same pain relief strength as codeine. An experiment using oral surgery patients found pentazocine's pain relief to be the same as aspirin's. After drug abusers began grinding down Talwin tablets and injecting the powder to get morphine and heroin sensations, the manufacturer introduced Talwin Nx tablets, which include a chemical designed to block those sensations if the substance is injected. Dispute exists about whether the Nx version of Talwin actually prevents effects sought by illicit users.
Research indicates that women surgical patients tend to get better pain relief from pentazocine than male patients. Research also indicates that the drug's surgical pain control is more effective for older patients and less effective for neurotics and for individuals with outgoing personalities. The drug has been routinely used to ease cancer pain and has had success in reducing joint pain caused by various afflictions, including arthritis. After noting that pentazocine does not prolong bleeding times, researchers called it suitable to fight pain from hemophilia, a blood disease that promotes bleeding. The substance has also been given as a treatment for stubborn cases of hiccups.
Investigators have documented that people can briefly experience euphoria after taking the drug. Some users feel more amiable and serene after a dose.
Drawbacks. Unwanted pentazocine actions include rapid heartbeat, blood pressure changes (up or down), fainting, sweating, confusion, sleepiness, blurred vision, nausea, vomiting, and constipation. Studies have found that 1% to 10% of persons receiving the drug (especially an injectable pharmaceutical version) have odd psychological reactions such as hallucinations, delusions, or a sense of unreality about the world. The substance can interfere with decision making and physical movement. Research has shown that driving skills decline when a person uses the drug, and users should avoid operating motor vehicles or other dangerous machinery. Because pentazocine has occasionally been associated with seizures, it should be used cautiously by persons prone to that affliction. The substance should also be used cautiously by people suffering from pancreas malfunction or breathing difficulty. The drug may be particularly hazardous for asthma sufferers who are overly sensitive to aspirin. Pentazocine is associated with skin hardening, which can result in extensive surgical removal of affected areas, to be replaced with skin grafts. Case reports tell of the drug provoking not only skin lesions but internal lesions in the digestive tract. Prolonged use of the substance can also cause muscle destruction that cripples a person's ability to move arms and legs. The compound can dangerously reduce white blood cell levels. Rat experiments indicate the drug may provoke attacks of porphyria, a body chemistry disease that can make people violent and sensitive to light.
One group of researchers documented that pentazocine increased the heart's workload by 22% in cardiac disease patients. Another group found that after a heart attack the drug increases blood pressure and the heart's need for oxygen and concluded that pentazocine is dangerous for heart attack patients. Not all authorities agree with that conclusion, however; some say that such adverse cardiac effects can be avoided through careful dosage, and other opinion says the drug is preferable to morphine for heart attack patients.
Abuse factors. Some abusers inject powder from oral pentazocine tablets. Oral pentazocine tablets contain ingredients not intended for introduction into the bloodstream, and injection can be fatal even though the digestive system can handle the same ingredients without difficulty.
Pentazocine and the antihistamine-anesthetic tripelennamine are a common illicit drug combination called Ts & Blues, sometimes used as a substitute for heroin ("T" standing for Talwin and "Blues" for the antihistamine tablets' color). The combination can create more euphoria than pentazocine alone produces and reduce the discontent caused by some doses of pentazocine. Users report development of memory trouble. Lung damage is a classic consequence of the combination, promoted by injecting oral formats of the drugs. Users have been hospitalized with chest pain, anxiety, spasms, sweating, nausea, and lightheadedness. Fainting and seizures are less common problems. Kidney damage has been noted. Other antihistamines can also be dangerous to use with pentazocine.
Pentazocine tolerance and dependence can occur. After daily doses were given to monkeys for six weeks, mild withdrawal symptoms appeared when the animals received nalorphine, a substance that provokes withdrawal signs
Was this article helpful?
It's time for a change. Finally A Way to Get Pain Relief for Your Arthritis Without Possibly Risking Your Health in the Process. You may not be aware of this, but taking prescription drugs to get relief for your Arthritis Pain is not the only solution. There are alternative pain relief treatments available.