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New Opportunities for Tin Use (cont’d)
anImal healthcaRe
Tin and zinc work well together to heal wounds and kill bacteria.
A new range of animal healthcare products is being launched in
the US, including pet and agricultural treatments. The biggest
new use may be in footbaths for treating hoof rot in dairy cattle.
A US-based company, Visions Marketing, is launching a range of
animal healthcare formulations for preventing and treating skin
diseases in bovine, equine, canine and other animal sectors.
These formulations, comprising aqueous preparations of tin(II)
fluoride and zinc sulphate, are patented and being marketed in
the US under the ‘Accelerator’ trade name.
Future developments, including human healthcare products,
are already under consideration.
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Building on Success: Developing Resources for the Future
toothpaSte
Tin is a key ingredient in ‘the world’s best toothpaste’. After years
of research Oral-B launched ProExpert toothpaste, choosing
tin to provide unique added benefits. Most toothpastes use
normal fluoride but stannous fluoride also kills bacteria and fills
microscopic holes in teeth.
One of the longest established pharmaceutical uses of tin
compounds is that of tin(II) fluoride and, to a lesser extent, tin(II)
pyrophosphate, in toothpastes, dentifrices, topical solutions
and mouthwashes. The US Food & Drug Administration (FDA)
has approved tin(II) compounds in toothpastes at levels up
to 0.4%, and the American Dental Association has approved
topical treatments containing up to 8% tin(II) fluoride.
The generic sector of oral healthcare has been highlighted
as a likely growth area for tin chemicals in the medium
term. In the late year or so there has been significant new
patent activity by the major players in this market – Procter &
Gamble, Unilever Colgate, Palmolive and Gaba International
– all involving tin(II) salts in dental formulations.