Because CNS side effects may occur quite frequently, activities requiring mental alertness should be avoided.
Thiabendazole may compete with other drugs, such as theophylline, for sites of metabolism in the liver, thus elevating the serum levels of such compounds to potentially toxic levels. Therefore, when concomitant use of thiabendazole and xanthine derivatives is anticipated, it may be necessary to monitor blood levels and/or reduce the dosage of such compounds. Such concomitant use should be administered under careful medical supervision.
Hypersensitivity to this product.
Thiabendazole is contraindicated as prophylactic treatment for pinworm infestation.