Baclofen: Abuse, Side Effects & Risks
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Baclofen: Abuse, Side Effects & Risks
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Baclofen: Abuse, Side Effects & Risks

Baclofen: Abuse, Side Effects & Risks
Written by Seth Fletcher on February 24, 2025
Medical editor Dr. Karina Kowal
Last update: February 24, 2025

Prescription drug baclofen potentially has some risks yet great medical use. Although it is primarily used to treat neurological disorders and muscular spasms, its complicated pharmacological profile has attracted interest from doctors and scientists investigating its broader therapeutic possibilities and related side effects. 

Key Takeaways

  • Medical Use & Risks – Baclofen treats muscle spasticity and neurological conditions but requires careful monitoring due to side effects and potential misuse.
  • Abuse & Dependence – Though not a narcotic, baclofen can be misused for its sedative effects, leading to dependence and withdrawal risks.
  • Overdose Dangers – High doses or mixing with alcohol and opioids can cause respiratory depression, seizures, or coma, requiring urgent medical attention.
  • Withdrawal Risks – Stopping baclofen suddenly may trigger severe withdrawal symptoms; gradual tapering under medical supervision is essential.
  • Expired Medication Risks – Expired baclofen may be ineffective or harmful. Safe disposal through pharmacies or local guidelines is recommended.

What is Baclofen?

Baclofen is a prescription medicine mainly used as a muscle relaxant to treat neurological illnesses, spinal cord injuries, and multiple sclerosis-related spasticity. It acts on the central nervous system (CNS) to improve mobility and lessen the intensity of muscle spasms.Beyond its primary use, baclofen can also be used to treat chronic pain, neurological disorders, and even addiction. It is a reasonable choice for treating addiction since it may reduce opiate and alcohol cravings. Its effectiveness in this sense is still under debate due to its potential for side effects and dependence.

baclofen habit forming

Although baclofen is not considered a narcotic, some people abuse it because of its euphoric and sedative properties, raising concerns about misuse and the possibility of addictive habit formation. Physical dependence, withdrawal symptoms, and an elevated risk of overdose can result from prolonged high-dose use. Taking this into account, doctors emphasize the importance of close surveillance for long-term users and warn against using baclofen without a prescription.

Baclofen Abuse and Addiction Potential

Is Baclofen an Opioid?

Although it has less potential for abuse than more conventional addictive medications, physical addiction can result in persistent usage. Long-term use of the drug causes alterations in the neurological system that might raise the likelihood of cognitive impairment, withdrawal symptoms, and overdose.

How Baclofen Contributes to Addiction

People seeking relaxation or euphoria may misuse medications by taking higher-than-prescribed doses. Over time, the brain can become dependent on the drug’s effects, leading to baclofen addiction. Chronic misuse increases the risk of dependency, causing withdrawal symptoms when the drug is finished. 

Signs of Baclofen Abuse

Recognizing baclofen abuse early is crucial in preventing dependency and severe health risks. Warning signs include:

  • Taking higher doses than prescribed, 
  • Using it without  medical necessity, 
  • Using the drug together with alcohol or opioids,
  • Having an intense desire for the drug or using it compulsively.

Risks of Long-Term Baclofen Misuse

Although baclofen is less likely to be abused than more conventional addictive medications, regular usage can cause addiction. Long-term use alters brain chemistry, thereby influencing the appropriate functioning of the human body. This raises the likelihood of cognitive dysfunction,  withdrawal symptoms and overdose.

baclofen uses

Seeking Help for Baclofen Addiction

People who suffer from baclofen addiction may need help from a rehabilitation centre to safely detox and recover. A course of treatment is needed to reduce withdrawal symptoms and prevent relapse. It may include medical supervision, behavioural therapy, and slow dose reduction. Assistance from professionals can help decrease the risks and enhance recovery results. 

Baclofen Withdrawal Symptoms

For individuals using baclofen over a prolonged period, stopping the medication abruptly can lead to withdrawal symptoms. These could be severe and, in extreme circumstances, fatal. 

Common Baclofen Withdrawal Symptoms

  • Anxiety and Agitation: Individuals may experience heightened nervousness, restlessness, and emotional distress.
  • Insomnia: Difficulty falling or staying asleep is a frequent withdrawal symptom, leading to exhaustion and irritability.
  • Tremors and Muscle Spasms: The sudden discontinuation of the drug can cause involuntary shaking and painful muscle stiffness.
  • Seizures: In severe cases, abrupt withdrawal can trigger seizures, which can be life-threatening.
  • Severe Rebound Effects: Symptoms that the drug was supposed to treat, such as muscle spasticity, may return even more intensely than before.

Importance of Gradual Tapering

Safely stopping the medicine depends on a systematic tapering plan under the direction of a medical expert. Professional addiction treatment programs, which offer medical monitoring and support to simplify the process, could help patients suffering from withdrawal issues.

The Risks of Using Expired Baclofen

One crucial issue with baclofen is drug expiration. Like every medication, muscle relaxers and neuromuscular medications have expiration dates that specify their effectiveness and safety. Many people take outdated doses without knowing, which can cause them a range of health issues as well as reduced effectiveness and uncertain impacts.

Does Expired Medication Lose Its Effectiveness?

The way a specific drug affects a person's neurological condition, muscle spasms, and withdrawal symptoms changes over time. If patients depend solely on it for treatment, the sharp drop in its usefulness can cause extreme spasticity or severe withdrawal symptoms. In some cases, an expected treatment not only fails but causes more issues than intended.

baclofen for addiction

Potential Risks of Taking Expired Muscle Relaxants

Beyond lower efficacy, outdated drugs could seriously endanger your health. Sometimes chemical instability results in unexpected negative effects, including: 

  • Drowsiness or dizziness can occur due to degenerated compounds. 
  • Higher overdose risk if one consumes more than advised to offset lower effects.
  • Unexpected withdrawal symptoms may occur because the expired drug gives no relief.

Furthermore, combining outdated prescriptions with alcohol, opioids, or other central nervous system depressants can also be very risky. Users might unknowingly increase their dosage, which puts them at risk of respiratory depression, coma, or overdose. 

How to Safely Dispose of Expired Medication

Always remember to check expiration dates and get rid of old prescriptions safely. Do not simply throw them away or flush them down the drain. Instead, get in touch with pharmacies that have disposal programs or follow local guidelines for safe medication disposal. 

Baclofen Overdose and Dangers

A  baclofen overdose comes from consuming too much of the drug, either intentionally or accidentally. Since this medication depresses the central nervous system, an overdose can be life-threatening, especially in combination with other substances.

Signs of a Baclofen Overdose

  • Confusion and Disorientation: Overdose can impair cognitive function, leading to confusion, agitation, and hallucinations.
  • Respiratory Depression: Shallow or slowed breathing can develop, which may result in oxygen deprivation and loss of consciousness.
  • Extreme Drowsiness or Coma: High doses of medicine can cause profound sedation, sometimes leading to a comatose state.
  • Slow or Irregular Heartbeat: Cardiovascular complications, including bradycardia (slow heart rate), can occur in severe cases.
  • Seizures: Individuals experiencing an overdose may suffer from convulsions, which can be life-threatening.

Risk Factors for Baclofen Overdose

The danger of overdosing might be increased by several elements. The most dangerous situation is caused by mixing baclofen with alcohol, benzodiazepines, or opioids. These medications increase the sedative properties of the drug, which can cause extreme respiratory depression, leading to a deadly outcome.  

Higher than recommended dosages represent another element of risk. Some people use baclofen for euphoria or relaxation, which greatly increases their risk of overdose. Underlying medical problems, especially renal disease or liver damage, can also slow down the drug’s metabolism, causing it to build up in the bloodstream and reach hazardous levels.

Emergency Actions for a Baclofen Overdose

If you suspect someone has overdosed on  baclofen:

  1. Call Emergency Services Immediately: Time is critical; professional medical intervention is necessary to prevent severe complications.
  2. Monitor Breathing and Heart Rate: If the person is unconscious but breathing, place them in the recovery position to prevent choking.
  3. Avoid Giving Fluids or Inducing Vomiting: This can worsen the situation, especially if the individual is unresponsive.
  4. Perform CPR if Necessary: If the person is not breathing or has no pulse, administer chest compressions until emergency responders arrive.

In cases of overdose, seeking quick medical assistance might literally save lives. The seriousness of the symptoms will determine if quick treatment – including respiratory assistance or activated charcoal – is needed.

baclofen expiration

Baclofen Use in Addiction Treatment

Currently,  there are numerous scientific studies on how baclofen can help with treating alcohol and opioid dependence. It is a possible choice in the management of addiction since some studies propose that baclofen could help lower cravings and withdrawal symptoms. Its efficacy varies, though:  some people respond well, while others find very few benefits.

The drug should only be used under close medical supervision, even if it could help with addiction therapy. Baclofen's habit-forming potential suggests that incorrect use may result in a different kind of dependence. Furthermore, affecting a patient’s capacity to continue with their therapy are baclofen side effects, including tiredness, dizziness, and mood swings. As part of a larger addiction treatment strategy, patients undergoing therapy in a rehabilitation centre could be provided baclofen in precisely controlled dosages.

FAQ

Is Baclofen Addictive?

Baclofen is not classified as a controlled substance, but it can be habit-forming when misused. Long-term use can lead to addiction, requiring professional intervention for withdrawal and recovery.

Is Baclofen an Opioid?

No, baclofen is not an opioid. It works by affecting GABA receptors in the brain, reducing muscle spasticity. However, it can still be misused for its sedative properties.

Can You Overdose on Baclofen?

Yes, taking too much baclofen can lead to overdose, causing severe respiratory depression, confusion, seizures, or coma. Immediate medical attention is required in case of an overdose.

What Are the Most Common Baclofen Side Effects?

Common baclofen side effects include drowsiness, dizziness, nausea, weakness and fatigue. Severe side effects may include hallucinations, confusion and difficulty breathing. Always follow medical guidance when taking baclofen.

Can Baclofen Be Used for Drug Addiction Treatment?

Yes, some medical professionals use baclofen for addiction treatment, particularly for alcohol dependence. However, it should only be used under medical supervision to avoid misuse and dependency risks.

Does Baclofen Expire?

Yes, baclofen expiration dates should be checked before use. Expired medication may not work as intended and could lead to unexpected side effects.

Certified Addiction Counsellor

Seth brings many years of professional experience working the front lines of addiction in both the government and privatized sectors.

Medicolegal Litigation Strategist/ Mediator

Dr. Karina Kowal is a Board Certified Physician specializing in insurance medicine and medicolegal expertise, holding certifications from the American Medical Association as a Certified Independent Medical Examiner. 

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