Binds to stereospecific benzodiazepine receptors on the postsynaptic GABA neuron at several sites within the central nervous system, including the limbic system, reticular formation.Enhancement of the inhibitory effect of GABA on neuronal excitability results by increased neuronal membrane permeability to chloride ions.Avoid abrupt discontinuation - requires gradual reduction in dose.Dosing adjustment in renal or hepatic impairment: Buspirone is metabolized by the liver and excreted by the kidneys.In transient insomnia, a 7.5 mg dose may be sufficient to improve sleep latency.In elderly or debilitated patients, it is recommended that therapy be initiated with 7.5 mg until individual responses are determined.Prolonged infusions have been associated with toxicity from propylene glycol and/or polyethylene glycol. Since this case occurred, our intensive care unit has instituted recommendations for the prevention of lorazepam-associated propylene glycol toxicity.
It also lacks the prominent sedative effect that is associated with more typical anxiolytics.Patients with impaired hepatic or renal function demonstrated increased plasma levels and a prolonged half-life of buspirone. during a 6-hour period, but not more than this in any 24-hour period.Therefore, use in patients with severe hepatic or renal impairment cannot be recommended. V.: Initial: 50-100 mg followed by 25-50 mg 3-4 times/day as needed. M.: 50-100 mg prior to surgery Ethanol withdrawal symptoms: Oral, I. Dosing adjustment in renal impairment: Clcr30 kg body weight: initiate therapy at 10 mg daily and titrate as tolerated up to 40 mg daily.Following oral administration, plasma concentrations of unchanged buspirone are very low and variable between subjects.Peak plasma levels of 1 ng/m L to 6 ng/m L have been observed 40 to 90 minutes after single oral doses of 20 mg.
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SUPPLIED: Tablet, as hydrochloride: 5 mg, 7.5 mg, 10 mg, 15 mg, 30 mg Dosing (Adults): Anxiety: Oral: 15-100 mg divided 3-4 times/day. V.: 50-100 mg to start, dose may be repeated in 2-4 hours as necessary to a maximum of 300 mg/24 hours Note: Up to 300 mg may be given I. •Doses above 5 mg/day should be administered in two divided doses.