top of page

Baclofen (KEMSTRO) : Mechanism of Action, Indications, uses, Administration, Side Effects

Baclofen, commonly known by the brand name Kemstro, is a medication used for the treatment of muscle spasms and spasticity, particularly associated with conditions such as multiple sclerosis (MS) and spinal cord injuries. Here's a detailed explanation of baclofen (Kemstro), including its chemical formula, mechanism of action, indications, uses, administration, and side effects.

Chemical Formula:

The chemical formula of baclofen is C10H12ClNO2. It is a white crystalline powder that is slightly soluble in water.

Mechanism of Action:

  • Baclofen acts as a muscle relaxant by affecting the activity of neurotransmitters in the central nervous system (CNS).

  • It primarily acts as a GABA-B receptor agonist, which means it enhances the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that inhibits the transmission of signals between nerve cells.

  • By binding to GABA-B receptors, baclofen reduces the excitability of motor neurons and suppresses the release of certain neurotransmitters involved in muscle contraction, leading to muscle relaxation and a decrease in muscle spasms and spasticity.

Indications and Uses:

  • Baclofen (Kemstro) is indicated for the management of spasticity and muscle spasms associated with various conditions, including multiple sclerosis, spinal cord injuries, cerebral palsy, and other neurological disorders.

  • It is primarily used when other treatment options have been ineffective or not well-tolerated.


  • Baclofen is available in different formulations, including oral tablets, oral liquid, and intrathecal injection (administered directly into the spinal fluid).

  • The specific dosage and administration instructions depend on the individual's condition, severity of symptoms, and response to treatment.

  • It is important to follow the healthcare provider's instructions or the directions provided on the medication label.

Side Effects:

  • Like any medication, baclofen may cause side effects. Common side effects include drowsiness, dizziness, weakness, fatigue, nausea, constipation, and headache.

  • These side effects are usually mild and may improve over time as the body adjusts to the medication. However, if they persist or become bothersome, it is important to consult a healthcare professional.

  • Less common but potentially serious side effects may include confusion, hallucinations, depression, low blood pressure, breathing difficulties, and allergic reactions. It is essential to seek immediate medical attention if any severe or unusual side effects occur.

  • It's worth noting that abrupt discontinuation of baclofen after long-term use may lead to withdrawal symptoms such as high fever, confusion, muscle stiffness, and seizures. Therefore, it is important to follow the healthcare provider's instructions when discontinuing the medication.

  • It's important to remember that the information provided here is a general overview, and the specific instructions, precautions, and potential side effects of baclofen (Kemstro) may vary.

  • It is always recommended to consult a healthcare professional or refer to the product's prescribing information for detailed and accurate information specific to the medication.


Related Posts

See All

Thanks for subscribing!

bottom of page