Dear Peter,

 Wellmark International of Dallas have the rights to Apistan in North
America where the product is provided in packs of 100 strips. Long-term
studies have shown that this Apistan formulation is stable in the carton
provided. These studies must be provided to the EPA before a licence will be
given. There is no problem, so far as I know, with stability.
Vita (Europe) Limited own the product in the rest of the world, where we
pack and sell in sachets of ten strips. The Apistan sold outside North
America is a slightly different formulation. In most other countries,
Apistan is considered to be a veterinary medicine rather than a pesticide.
For veterinary registration, the formulation specification, including
stability of the product, are even more tightly regulated and we know that
the "European"  Apistan is stable in its 10-strip sachet packaging for 3
years. The appropriate studies were performed many years ago using this
packaging material and by law that is how we provide the product today.
So, there should be no degradation of the product, stored as per the label
instructions in either case. If for any reason, such a problem is suspected
users in North America should contact Wellmark International directly or
Vita (Europe) Limited outside North America.

Max

Dr Max Watkins
Vita (Europe) Limited
21/23 Wote Street
Basingstoke
Hampshire RG21 7NE
UK

Tel.: +44 (0) 1256 473177
Fax: +44 (0) 1256 473179

e-mail: [log in to unmask]

web: http://www.vita-europe.com

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