Novartis Animal Health has launched Zolvix, billed as the first truly novel anthelmintic class for livestock to be launched in more than 25 years, together with a new drenching system designed to make drenching faster, easier and more accurate.

Zolvix contains a new active ingredient, monepantel, which kills all key sheep gastro-intestinal nematodes (roundworms), including those resistant to the existing treatments.

According to the company, the development of this new drench follows the persistent challenge from worms that have developed resistance to the three other classes of drench - white (benzimidazole or 1-BZ), yellow (levamisole or 2-LV) and clear (macrocyclic lactone or 3-ML) and combinations of these. Zolvix has a unique mode of action and so forms a fourth generation of anthelmintic, which will be known as the 4- AD, or orange drench class

Novartis Animal Health has prioritised the UK and Ireland as key launch countries for Zolvix to provide their sheep farmers with an answer to the pressing challenge of increasing anthelmintic resistance.

Lesley Stubbings, an Independent sheep consultant and Sustainable Control of Parasites in Sheep (SCOPS) panel member, said: "Resistance has become an ever increasing threat since the last new anthelmintic group was introduced to the UK market more than 25 years ago. Zolvix offers farmers a valuable opportunity to maintain good worm control and prolong the effective life of the existing products. Following the SCOPS guidelines to carefully integrate Zolvix into worm control strategies, before the other groups fail, will allow our sheep industry to reap the full benefits of this new novel group."

A study carried out by Novartis in conjunction with the Hopkirk Research Institute showed that Zolvix treated sheep gained 33.5%, or 2.8 kg deadweight, more than sheep treated with a drench to which they were resistant.

Novartis Animal Health Brand Manager Simon Harris said: "Parasite resistance is a growing problem that decreases the productivity of sheep of all ages. Many veterinarians and farmers are concerned about this, with an increasing number of farmers reporting resistance to the three groups of wormers that have been available up to now, so the introduction of Zolvix is very timely."

At the same time, the company has also launched an award-winning new drenching system designed to offer 'a superior drenching experience for both animal and operator'. The new Optiline Drencher and Optivix backpack system were developed in collaboration with drenching specialists Simcro Tech Ltd.

The Optiline Drencher has already won several design and engineering awards, including a bronze award in the 2009 NZ BEST design awards, a coveted International Forum (IF) 2010 product design award from Germany and the prestigious Bayer Innovators Award for design and engineering.

It was also a finalist in the New Zealand Agritech Innovation Awards reached the finals in three categories of the 2009 New Zealand Trade and Enterprise International Business Awards.

The Optiline drencher is coupled with a durable, light Optivix backpack that has been specially tailored to provide left or right-handed operators with the same wide range of adjustment. It also has two drench cradles - at chest and hip level - to ensure maximum comfort.

Mr Harris said: "This drencher is best appreciated during use. Contact your local Novartis Animal health representative to arrange a trial."

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