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Lioresal (Baclofen) is a derivative of gamma-aminobutyric acid, and is an agonist specific to mammalian but not fruit fly (Drosophila) GABAB receptors. It is used for the treatment of spastic movement, especially in instances of spinal cord injury, spastic diplegia, multiple sclerosis, amyotrophic lateral sclerosis (Lou Gehrig's Disease) and trigeminal neuralgia. Its beneficial effects result from actions at spinal and supraspinal sites. Lioresal (Baclofen) can also be used to treat hiccups.
Lioresal (Baclofen) affects the spinal cord, which is the main connection between the brain and the rest of the body. The spinal cord plays a role as a reflex system that functions as a feedback loop. Our most obvious reflex is the withdrawal of our appendages from extreme heat. Lioresal (Baclofen) works on this reflex circuit's Renshaw cells. These cells are very sensitive to a neurotransmitter produced by the nervous system, GABA (gamma-amino-butyric-acid), which slows this reflex circuit down. Lioresal (Baclofen) mimics the effects of GABA. The dose of intrathecal Lioresal (Baclofen) necessary to slow down the reflex circuit is variable but is generally one thousand times (three orders of magnitude) smaller than the oral dose.
Lioresal (Baclofen) is a direct agonist of GABAB receptors, which upon activation utilize a G-protein coupled mechanism to increase transmembrane potassium conductance through specific ion channels. Since potassium has a positive charge, and since intracellular potassium concentrations are normally at least ten times that of the extracellular environment, opening potassium channels has an inhibitory, hyperpolarizing effect on a cell's resting electrochemical potential. This tends to decrease the rate of neuronal action potentials, which accounts for Lioresal (Baclofen)'s anti-spastic effects.
What is the shelf life of the pills?
- The expiry date is mentioned on each blister. It is different for different batches. The shelf life is 2 years from the date of manufacture and would differ from batch to batch depending on when they were manufactured.
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