An orange flavoured, chewable, single-dose tablet for the treatment of threadworm (pinworm) in adults and children.Ovex Tablets contain the active ingredient Mebendazole (an anthelmintic) which works by preventing worms from absorbing sugars that are essential for their survival.Threadworm is a contagious infection which can affect the whole family. If you are suffering from threadworm and need a solution that will work for everyone in your household, Ovex is available in packs of one tablet, a pack of four tablets or the liquid suspension which will give you 6 doses.