Zentel is a medication containing 400mg of albendazole per tablet, manufactured by GlaxoSmithKline. This single-dose tablet is designed to be taken as one complete treatment dose. The active ingredient albendazole belongs to a class of medications known as anthelmintics. Each package contains 1 tablet that delivers the complete 400mg dose. The medication is manufactured and distributed by GlaxoSmithKline (GSK).