Tizanidine, alpha-2 adrenergic receptor agonist, provides analgesic and hemodynamic benefits, which could enhance the efficacy of local anaesthetics. This randomized controlled trial examines the effectiveness of oral tizanidine as an adjunct to intrathecal levobupivacaine for spinal anaesthesia in lower limb surgeries
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Inclusion Criteria: * patients aged 18 to 60 years with an ASA grade of I-II, who were scheduled for elective lower limb surgeries with a duration of less than 2 hours and 30 mins. Exclusion Criteria: * Patients with certain conditions such as pregnancy, coagulopathy, cerebrovascular disease, systemic infections, inability to understand the study protocol, allergy to local anaesthetics, psychiatric disorders affecting evaluation, infection at the injection site, kidney and liver diseases, myelopathy or peripheral neuropathy, spinal stenosis, prior spinal surgeries, raised intracranial pressure, multiple sclerosis, spina bifida, those receiving thromboprophylaxis and refusal to participate in the study were excluded.