Axid Oral Solution
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Axid Oral Solution
Overdoses of nizatidine have been reported rarely. The following is provided to serve as a guide should such an overdose be encountered.
Signs and Symptoms
There is little clinical experience with overdosage of nizatidine in humans. Test animals that received large doses of nizatidine have exhibited cholinergic-type effects, including lacrimation, salivation, emesis, miosis, and diarrhea. Single oral doses of 800 mg/kg in dogs and of 1,200 mg/kg in monkeys were not lethal. Intravenous median lethal doses in the rat and mouse were 301 mg/kg and 232 mg/kg respectively.
In the two 8-week pediatric exposure trials of nizatidine in 256 pediatric patients, there were no cases of deliberate overdosage. In one study of nizatidine 10 mg/kg/day, drug compliance rates up to 7.5% above 100% compliance were not associated with clinically significant adverse events.
To obtain up-to-date information about the treatment of overdose, a good resource is your certified Regional Poison Control Center. Telephone numbers of certified Poison Control Centers are listed in the Physicians' Desk Reference (PDR). In managing overdosage, consider the possibility of multiple drug overdoses, interaction among drugs, and unusual drug kinetics in your patient.
If overdosage occurs, use of activated charcoal, emesis, or lavage should be considered along with clinical monitoring and supportive therapy. The ability of hemodialysis to remove nizatidine from the body has not been conclusively demonstrated; however, due to its large volume of distribution, nizatidine is not expected to be efficiently removed from the body by this method.
Axid® Oral Solution is contraindicated in patients with known hypersensitivity to the drug. Because cross-sensitivity in this class of compounds has been observed, H2- receptor antagonists, including nizatidine, should not be administered to patients with a history of hypersensitivity to other H2- receptor antagonists.
Last reviewed on RxList: 8/24/2012
This monograph has been modified to include the generic and brand name in many instances.
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