FARNAM MECWORMA and TAPE ALLWORMER is a highly effective broad spectrum anthelmintic achieving up to 100% worm kill (including benzimidazole resistant strains). MECWORMA and TAPE ALLWORMER utilises a combination of two horse wormers from different classes, abamectin (macrocyclic lactone) and morantel tartrate (tetrahydropyrimidine). Abamectin and morantel tartrate are both broad spectrum anthelmintics that allow for combined treatment and control of both large and small strongyles, tapeworm, cutaneous onchocerciasis and nematodes including Habronema and Draschia spp. which cause skin lesions (summer sores).