Baclofen is a muscle relaxer and an antispastic agent. It is primarily used in the treatment of muscle spasticity, a condition often associated with multiple sclerosis, spinal cord injuries, or diseases affecting the spinal cord. While administered orally, the medication is available in tablet form and also as a solution for intrathecal injection for use in an implanted pump system.<\/p>\n
The chemical name for baclofen is 4-amino-3-(4-chlorophenyl) butanoic acid. It appears as a white or almost white crystalline powder, slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform.<\/p>\n
Baclofen acts on the central nervous system (CNS) to produce its muscle relaxant effects. Its primary mechanism of action is as an agonist at GABA-B receptors, which inhibits excitatory neurotransmitter release, thereby damping neuronal excitability and reducing muscle spasticity.<\/p>\n
The initial dosage should be individualized according to the patient’s response and tolerability. Oral baclofen therapy may be initiated with doses of 5 mg taken three times daily, gradually increased to 20 mg three times daily if needed. The maximum daily dose should generally not exceed 80 mg. For intrathecal administration, the dosage must be individualized by a skilled clinician.<\/p>\n
Baclofen is rapidly and extensively absorbed after oral administration. It has an onset of action typically within one to two hours and a duration of action of 4 to 8 hours. The elimination half-life ranges from 2.5 to 6 hours, and it is excreted primarily by the kidneys. Baclofen does not undergo significant metabolism and is excreted mainly as unchanged drug.<\/p>\n
Baclofen is indicated in the treatment of spastic movement disorders, especially due to multiple sclerosis or spinal cord lesions, muscular rigidity, and spasms. It can be used in adults and children aged 1 year and above for chronic severe spasticity resulting from multiple sclerosis, spinal cord lesions, or neurological diseases.<\/p>\n
Baclofen can be administered orally in tablet or liquid form, or intrathecally directly into the spinal fluid via an implanted pump, designed for the controlled delivery of the drug into the CNS.<\/p>\n
Potential interactions include additive CNS depression when combined with alcohol, benzodiazepines, opioids, or other CNS depressants. Caution is advised when used concurrently with antihypertensive agents, as enhanced antihypertensive effect can occur. Monoamine oxidase inhibitors may also interact with baclofen.<\/p>\n
Common side effects of baclofen include drowsiness, dizziness, weakness, fatigue, headache, insomnia, nausea, increased urinary frequency, and constipation. More serious side effects may include seizures, confusion, respiratory depression, and hallucinations, particularly at high doses or with abrupt discontinuation of the drug.<\/p>\n
In patients with renal impairment, caution should be exercised, and dosage reduction may be necessary as baclofen is primarily eliminated by the kidneys. Lower initial dosages and slower dosage titration are recommended to avoid drug accumulation and associated side effects.<\/p>\n
Baclofen is classified as FDA pregnancy category C. There are no adequate and well-controlled studies in pregnant women. Baclofen should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. It is known to pass into breast milk, so caution should be exercised when baclofen is administered to a nursing woman.<\/p>\n
Symptoms of baclofen overdose might include profound CNS depression, respiratory depression, hypotension, seizures, and coma. Treatment of overdose consists of appropriate supportive measures, as there is no specific antidote. In severe cases, hemodialysis may be considered to facilitate drug removal.<\/p>\n
Baclofen tablets and solutions should be stored at controlled room temperature, away from moisture and heat, and out of reach of children. For intrathecal delivery, the specific instructions provided by the pump manufacturer for both the baclofen solution and device should be followed.<\/p>\n
Patients prescribed baclofen should be advised regarding the gradual dosage escalation to minimize adverse effects and cautioned about the potential for CNS depression, especially in relation to activities requiring alertness such as driving or operating machinery. They should also be educated on the potential for withdrawal symptoms upon abrupt discontinuation and the necessity to adhere to prescribed dosage schedules.<\/p>\n","protected":false},"excerpt":{"rendered":"
Baclofen is a medication that has an active ingredient of the same name, baclofen. It may also be known by brand names such as Lioresal. This drug is commonly used to help relieve muscle spasms, stiffness, and pain caused by conditions like multiple sclerosis and spinal cord injuries. It works by relaxing the muscles, which can improve movement and comfort.<\/p>\n
The price scale for Baclofen typically fluctuates between 0.61$ and 3.39$ per pill. Factors such as packaging dimensions and active ingredient ratio (30 or 360 mg) come into play.<\/p>\n","protected":false},"featured_media":108,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[139],"product_tag":[],"class_list":{"0":"post-312","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-muscle-relaxant","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-external"},"yoast_head":"\n