Wormer advice needed please!

[Rudey]

This is a link with basic information about pinworm: http://www.equidblog.com/uploads/file/JSW-MA2 Pinworms - Equine.pdf

My friends pony had pinworm a few months ago. She treated him with a couple of wormers, and kept him stabled to monitor what came out for over a week. After two days of 'worm free' droppings, he was turned out again. As an extra measure, she wormed him again when the others in her field were wormed two weeks later.

Her pony has now started with all of the symptoms of pinworm again. My other friend went on a wormer course the other week, and she said that pinworm can be a re-occuring problem. She said that the worming programme my friend has followed have very similar ingredients in the wormers used, and it would appear, non-effective treating her pony for the pinworm as there seems to be an immunity. She suggested using a different type of wormer. (In the link above, it states that there has been resistance to ivermectin reported in some areas - this is an ingredient in the wormers my friend has used).

I also read somewhere else, that wormers now are made that well they are easily digestible compared to the wormers years ago, and so alot of wormers don't reach the back end of the intestine where pinworms are found.

So far this year, my friends pony has had Equi-Max, Eraquelle (sp?), Pramox, and Equest. These all treat pinworm in larvae and adult stages, however, they just haven't solved the problem for this pony!

My other friend suggested Strongid-P, however, this only treats adult pinworm, not the larvae. So, if she used this, the pony would get rid of the adult pinworms, but eventually the larvae would mature into adult worms and the cycle starts again!! GAH!

HELP! Which wormer would you suggest? Thank you so much if you can help! xx

 

[china]

wouldnt know which wormer to suggest but i wouldn't imagine you could give him to much more, pramox alone is extremely strong and you should wait 13 weeks before worming again, if you keep putting wormers in him you risk giving him colic or damaging his stomach, i would suggest contacting the vet who could probably give him an injection of some sort that has a direct effect on them. good luck!!

 

[Rudey]

Thanks for your reply! That was her concern exactly too! I know she said she was going to give the Vets a call to see what they recommended, but I haven't heard any sort of update on that just yet. The local tack shop suggested a 5 day wormer. The thing is, the worming programme she is on isn't working for her pony at all, she needs to go on a different programme, but what exactly! xx

 

[iconique]

Suggest your friend talks to her vet. Pinworms are usually found around the anus and to test the easiest way is to use some selotape and effectively stick it on and peel off hopefully with your sample, which is then transferred to a slide and put under a microscope.
There has been a recent article in the H&H which had details of an unpublished paper and how the normal route of worming wasn't always effective in the case of pinworm and a topical solution was also applied.
Obviously things like poo picking fields at least twice a week help with eradication but these eggs are resiliant little beggars and won't always go away with just a single treatment.
Overworming has its own problems, so again vet is going to be the best route.