Antihistamines how long to help

Hi there, my 25y Arabx gelding started having minor nose bleeds. He has a few last week so I had him in to be scoped and all looked good just some inflammation and some excess phlegm. Started on SMZs and Ceterizine BID on Saturday. He hasn’t had epistaxis since until yesterday he had a smal amount of blood tinged smears on his coat from wiping his nose but nose clean. Today he has another nose bleed. How long to see these meds help? He’s also got PPID which he’s on Pergolide for and doing well otherwise. It is dusty as hell here. He is feed soaked alfalfa cubes, his grain and access to alfalfa hay also. Only dust is environmental and we did have a weather change from hot to overcast today.

The internist that prescribed Zyrtec for my horse for different symptoms suggested I try it for at least a week or two before deciding if it did or didn’t help. I noticed improvement after about 4 days.

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I agree that at least a full week, if not 2, would be a better indicator.

What dose cetirizine is he on? I would be using the max dose to start (.4mg/kg, twice a day) and then once you see results, tapering down to see if you can get to the lowest dose (.2mg/kg) once a day. Sometimes you can even go a bit lower than that.

What’s the humidity like? Low humidity can contribute too

On this subject, but has anyone found any good deals on the generic Zyrtec? I’m having a harder time finding it this time of year.

If you’re a Costco member you can get 365 of the generic Costco brand for $10.99.

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I am not but I keep making all my friends with Costco memberships grab me some every time they go… I was just wondering if there was a better option! Kroger has the 365 for 15 bucks usually but it’s sold out this time of year.

Costco has it on sale right now with free shipping. You could ask one of your friends to order it for you and have it shipped to your address.

Are you an Amazon prime member? Generic Zyrtec is 300 tabs for $10.93. Free shipping.

Ask your vet if they can price compounded cetirizine. I have no idea the cost, and while some compounded meds are cheaper, some aren’t, and this may not be since there’s a generic tablet available.

It helped my horse in about 4 days. I got the generic Zyrtec at Target as I’m not a Costco member and I didn’t want to wait for online shipping. I got 120 tabs for $19. Cheap to me considering most horse meds! They also a 300 tab bottle for about $36. I discontinued the tablets after about 8-9 days and the symptoms haven’t returned. Figured I can save the rest if the cough flares up again, but it’s been 3 weeks…

Blockquote[quote=“IPEsq, post:2, topic:764248, full:true”]
The internist that prescribed Zyrtec for my horse.
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On first read I saw “The internet prescribed” :thinking: :rofl:

On first read I saw “The internet prescribed” :thinking: :rofl:
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:stuck_out_tongue_closed_eyes: Hah I just figured I’d specify the specialty since my performance vet did not want to advise on my horse’s asthma other than to suggest I could check him into rehab to do the water treadmill for conditioning when the air is too bad.

I had been buying from Target, and also found Walmart’s brand isn’t any cheaper. I just ordered a couple more bottles from Amazon, but another boarder buys from Costco and I guess I could pay her to add some for me to her next run. I feel a little less weird buying multiple years’ worth of meds (for a human) via Amazon than I do in person.

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Thanks all. He’s not had a nose bleed since. Knock on wood. I was looking closer at his dose too and he was on the low end so I upped him to mid range but am thinking I might up it to high end tonight. The weather change may have had something to do with it too. I had a mean sinus headache myself the next morning.

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