Baclofen is a centrally acting muscle relaxant primarily used to treat muscle spasticity associated with conditions such as multiple sclerosis, spinal cord injury, and other neurological disorders. It works by activating GABA-B receptors in the central nervous system, which helps reduce nerve signal transmission and relaxes muscles. Baclofen was first synthesized in the early 1960s by researchers at Ciba-Geigy, initially intended for the treatment of epilepsy. However, clinical trials showed limited effectiveness for seizures but revealed significant benefits in reducing spasticity. As a result, it was introduced into medical practice in the 1970s as an antispastic agent. Over time, Baclofen has become a widely used medication, available in both oral and intrathecal (delivered directly into the spinal fluid) forms, improving the quality of life for patients with severe muscle stiffness. Its development marked an important advancement in neuropharmacology, highlighting the therapeutic potential of targeting inhibitory neurotransmitter systems.