Baclofen

Baclofen is a medication whose active ingredient is also called baclofen. It is sometimes known by the brand names Lioresal and Gablofen. Baclofen is used to help relax muscles. Doctors often prescribe it to treat muscle spasms and stiffness caused by multiple sclerosis, spinal cord injuries, or other conditions affecting the nerves and muscles.

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Baclofen Price

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The price span for Baclofen is approximately £0.49 – £2.74 per pills. The exact cost is influenced by the size and type of packaging, as well as the amount of active ingredients (30 or 360 mg).

Medication Overview

Baclofen is a muscle relaxant used to alleviate muscle spasms, primarily in conditions such as multiple sclerosis, spinal cord diseases, and other neurological disorders. It works by inhibiting synaptic transmission in the central nervous system, leading to relief from stiffness, pain, and spasms. Baclofen is administered orally in tablet form, but it can also be delivered intrathecally via a pump directly into the spinal fluid for severe cases. The effectiveness of baclofen in treating spasticity makes it a valuable component of therapeutic strategies aimed at improving patient mobility and quality of life.

Mechanism of Action

Baclofen functions primarily by activating gamma-aminobutyric acid (GABAB) receptors in the central nervous system. By stimulating these metabotropic receptors, baclofen inhibits the release of excitatory neurotransmitters. This action leads to a reduction of muscle tone and mitigation of spasticity symptoms. The drug specifically reduces neuronal excitability at the level of the spinal cord, which decreases the frequency and severity of muscle spasms. Furthermore, it enhances the muscle’s ability to stretch, thus providing increased movement and flexibility to patients.

Indications for Use

Baclofen is primarily indicated for the management of spasticity resulting from multiple sclerosis, specifically when this spasticity hinders daily functions. It is also used in conditions such as traumatic spinal cord injury, cerebral palsy, and brain injuries that present similar symptoms of muscle rigidity and discomfort. However, the prescription of baclofen requires a rigorous assessment of the patient’s overall condition, and it is generally considered when the risk of spasticity outweighs the potential side effects. In pediatric populations, baclofen may be prescribed off-label for similar indications under close medical supervision.

Dosage and Administration

The initial dosage of baclofen typically begins at a low level and is gradually increased based on patient response and tolerability. For oral administration, an adult dosage may start at 5 mg taken three times daily, with potential increments every three days, reaching up to 80 mg per day if necessary. Intrathecal administration dosage is individualized and might be considerably lower due to direct delivery into the central nervous system. Continuous monitoring and periodic adjustments are critical to ensure efficacy and minimize adverse effects.

Pharmacokinetics and Metabolism

Baclofen is rapidly absorbed from the gastrointestinal tract with about 70-80% bioavailability. It reaches peak plasma concentrations approximately two to three hours after ingestion. The drug is primarily excreted by the kidneys, with a half-life ranging between two to four hours. Hepatic metabolism of baclofen is minimal; however, renal impairment significantly affects its clearance, necessitating dosage adjustments. The intrathecal route achieves higher spinal fluid concentrations and results in lower systemic exposure compared to oral tablets.

Potential Drug Interactions

Baclofen may interact with other central nervous system depressants, leading to compounded sedative effects. Caution is advised when used concomitantly with medications such as benzodiazepines, opioids, and antihistamines. Certain hypertensive agents may also amplify the hypotensive effects of baclofen, requiring close monitoring of blood pressure. Alcohol use should be minimized, as it can exacerbate baclofen’s side effects. Clinicians must evaluate all patient medications to prevent interaction-related adverse effects.

Storage and Handling Guidelines

Baclofen oral tablets should be stored in a tightly closed container at room temperature, away from excess heat and moisture. They must be kept out of reach of children and safeguarded from accidental consumption or misuse. Intrathecal solutions should be handled and stored according to the specific guidelines provided by healthcare professionals, ensuring aseptic techniques are adhered to during refilling and maintenance of intrathecal pumps.

Population-Specific Considerations

Special precautions should be considered for populations including the elderly, who may experience increased sensitivity to central nervous system effects. Pediatric and geriatric populations often require individualized dosing schedules and require careful monitoring. In renal impairment, dose adjustments are crucial due to reduced drug clearance, and dialysis patients may have altered pharmacokinetics. Healthcare providers must assess the benefit-risk ratio for pregnant and lactating women due to potential effects on fetal and neonatal health.

Long-term Use Implications

Patients on long-term baclofen therapy need regular assessment to ensure continued efficacy and to identify potential dependence or tolerance development. Regular consultations may include monitoring for therapeutic effectiveness, side effects, and the need for dosage alterations. Abrupt discontinuation must be avoided to prevent withdrawal symptoms such as seizures, hallucinations, or rebound spasticity. Adequate planning and gradual dose tapering help mitigate withdrawal risks for patients discontinuing treatment.

Dosage

10mg, 25mg

Pack

120 pills, 180 pills, 270 pills, 30 pills, 360 pills, 60 pills, 90 pills

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Baclofen
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