Worming question - encysted redworm

Ceriann

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I have stupidly used equimax for my horses to treat for encysted redworm. My mistake - I didn’t check the active ingredient properly. Given risks with encysted red worm I need to worm again - as I’ve wormed with equimax am I safer to use panacur which targets encysted redworm and not equest paramox as this will double up the already used active ingredients in the equimax? I normally worm by reference to worm counts (and generally don’t need to worm) but always worm for encysted in Dec/Jan - just cocked up on my choice of wormer! I wormed 3 weeks ago so there’s already a bit of lapse of time. Thanks in advance.
 
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If you don't normally need to worm (i.e. the worm burden is very low) it would be biologically very strange to have a large enough number of encysted worms to cause any problem....
 

Ceriann

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They occasionally need worming but ive always wormed for encysted irrespective of test results. Teach me to read the details fully! I’ll wait a week or two and use a wormer that targets them.
 

Fransurrey

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If you don't normally need to worm (i.e. the worm burden is very low) it would be biologically very strange to have a large enough number of encysted worms to cause any problem....
That depends on a few things (yard move, unsettled weather causing re-emergence, blah blah). Encysted worms don't show up in counts and can remain encysted for 3 years or more. I have zero worm counts (last done in January) and worm twice a year as a result, yet I am currently dealing with cyathastomiasis in one of mine. I poo pick every single day and have done for almost a decade. In my case I did move yards in November, so he may well have picked them up at new yard, as they can encyst and re-emerge in as little as 2 weeks, apparently!

https://www.westgatelabs.co.uk/info-zone/parasites-affecting-horses/redworm/

OP, I was advised by the vet that if red worms did show up after worming (in my case with Pramox), then to worm again in 2-3 weeks to ensure I catch any remaining, particularly with the mild weather. If it's safe to do that with Pramox, I would say it's ok to use Pramox after standard Equest, but I would just phone your vet practice and ask for one of them to call you back. It's what they're there, for! ;-) Obviously mine is a more special case, so the benefits/disadvantage ratios are different.
 

SEL

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That depends on a few things (yard move, unsettled weather causing re-emergence, blah blah). Encysted worms don't show up in counts and can remain encysted for 3 years or more. I have zero worm counts (last done in January) and worm twice a year as a result, yet I am currently dealing with cyathastomiasis in one of mine. I poo pick every single day and have done for almost a decade. In my case I did move yards in November, so he may well have picked them up at new yard, as they can encyst and re-emerge in as little as 2 weeks, apparently!

https://www.westgatelabs.co.uk/info-zone/parasites-affecting-horses/redworm/

OP, I was advised by the vet that if red worms did show up after worming (in my case with Pramox), then to worm again in 2-3 weeks to ensure I catch any remaining, particularly with the mild weather. If it's safe to do that with Pramox, I would say it's ok to use Pramox after standard Equest, but I would just phone your vet practice and ask for one of them to call you back. It's what they're there, for! ;-) Obviously mine is a more special case, so the benefits/disadvantage ratios are different.
Can I ask what the symptoms of cyathastomiasis were? I'm very OCD about worming and worm counts since we lost 3 horses at an old yard to redworm damage. My horses were in a separate paddock, but my draft shared a barn during winter with one of the youngsters that was PTS so I've been a bit paranoid ever since.
 

Fransurrey

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Can I ask what the symptoms of cyathastomiasis were? I'm very OCD about worming and worm counts since we lost 3 horses at an old yard to redworm damage. My horses were in a separate paddock, but my draft shared a barn during winter with one of the youngsters that was PTS so I've been a bit paranoid ever since.
Lots of info online, but in brief: intermittent softer stools, general discomfort in gut, acute diarrhoea and/or colic. Vet repeatedly advised not to worm whilst he had diarrhoea and to leave a week between soft stools and worming. He was treated with steroids and biosponge. Worming was on Saturday and yesterday during a poo dissection I saw tiny immature red worms (still white, as they hadn't fed). Now keeping a close eye. It may be a red herring, of course, as I haven't seen any mature worms at all.
 

ester

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It is theoretically correct that a full, well sampled history of low FEC throughout the summer grazing period will mean there is likely a low number of encysted red worms but FEC come with a lot of caveats that do make it a bit of risk to presume that.

Personally I'd just chuck a plain equest down the horse, but panacur 5 day could be used if you preferred that option.
 
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