Montelukast overdose

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overdosage topics

Mortality

Treatment

Post-marketing experience/clinical studies

Peritoneal dialysis/hemodialysis



Mortality

No mortality occurred following single oral doses of montelukast up to 5000 mg/kg in mice (estimated exposure was approximately 335 and 210 times the AUC for adults and children, respectively, at the maximum recommended daily oral dose) and rats (estimated exposure was approximately 230 and 145 times the AUC for adults and children, respectively, at the maximum recommended daily oral dose). Return to top

Treatment

No specific information is available on the treatment of overdosage with Montelukast. In chronic asthma studies, montelukast has been administered at doses up to 200 mg/day to adult patients for 22 weeks and, in short-term studies, up to 900 mg/day to patients for approximately a week without clinically important adverse experiences. In the event of overdose, it is reasonable to employ the usual supportive measures; e.g., remove unabsorbed material from the gastrointestinal tract, employ clinical monitoring, and institute supportive therapy, if required. Return to top

Post-marketing experience/clinical studies

There have been reports of acute overdosage in post-marketing experience and clinical studies with Montelukast. These include reports in adults and children with a dose as high as 1000 mg. The clinical and laboratory findings observed were consistent with the safety profile in adults and pediatric patients. There were no adverse experiences in the majority of overdosage reports. The most frequently occurring adverse experiences were consistent with the safety profile of Montelukast and included abdominal pain, somnolence, thirst, headache, vomiting and psychomotor hyperactivity. Return to top

Peritoneal dialysis/hemodialysis

It is not known whether montelukast is removed by peritoneal dialysis or hemodialysis. Return to top



Adapted from the FDA Package Insert.