HEADS UP!! Bactrim Dosing

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Talishan
You can quote me

Post   » Sun Sep 18, 2016 7:46 pm


Recently one of our members (Delaine?) was given Bactrim (sulfa trimeth) at the vet, at a concentration nearly nine times the standard "usual", yet the dose was given as per normal -- resulting in a nine-fold overdose had it not been caught.

The same thing happened to me this past Thursday. It took two phone calls to the vet to straighten it out.

The standard "pink stuff" that vets and caretakers have used for years is 240 mg/5 mL, or 48 mg/mL. This is the standard pediatric suspension, and is what is referenced in our Medical Guide here.

The "new" stuff is 400 mg/mL. It can of course be used but the dosing volume has to be decreased accordingly! The stuff I got was a pale goldish-beige, which is what tipped me off that there might be a problem.

IF YOUR VETERINARIAN PRESCRIBES BACTRIM FOR YOUR PIG, DOUBLE OR TRIPLE-CHECK THE DOSING AND CONCENTRATION BEFORE LEAVING THE VET'S OFFICE!

I suspect the vets are so accustomed to using this med that they prescribe as they have for years, while some drug manufacturer is pushing a new formula to clinic purchasing personnel. Make sure everyone is on the same page before you leave the vet if you are given Bactrim for your pig!

(Lynx -- I have taken the liberty of making this a sticky. If that's inappropriate, I apologize, and please adjust as you see fit.)

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Lynx
RESIST

Post   » Sun Sep 18, 2016 10:11 pm


I will add a warning on the antibiotic page tomorrow.

bpatters
And got the T-shirt

Post   » Sun Sep 18, 2016 10:17 pm


Thanks for adding that, Talishan. I've posted a warning at GPC also.

Talishan
You can quote me

Post   » Mon Sep 19, 2016 1:09 am


Thank you both.

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Lynx
RESIST

Post   » Sun Sep 25, 2016 1:29 pm


I am looking for something solid online describing precisely this drug. I can't find it.

Did find this but the oral is still the same-old same-old pink stuff. Perhaps one of the other concentrations delivered parenteraly? I had to look it up as it just means not administered via the mouth and alimentary canal. "Taken into the body or administered in a manner other than through the digestive tract, as by intravenous or intramuscular injection."

http://www.antimicrobe.org/drugpopup/tmp-smx.htm

Dosage: The 1:5 ratio (TMP:SMX) remains constant in all dosage forms

Oral:
- Tablets Single strength (SS: 80/mg/400mg TMP/SMX)
. . . . . . . . Double strength (DS: 160mg/800mg TMP/SMX)

- Liquid (suspension) 40mg / 200mg TMP/SMX per 5ml

Parenteral: Vial
- 5ml: Single strength (80mg/400mg TMP/SMX)
- 10ml: Double strength (160mg/800mg TMP/SMX)
- 30ml: Six times strength (480mg/2400mg TMP/SMX)

I would like to find the higher concentration product sold online so I can add better information.

bpatters
And got the T-shirt

Post   » Sun Sep 25, 2016 1:50 pm


It could have been compounded.

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Lynx
RESIST

Post   » Sun Sep 25, 2016 2:19 pm


Talishan referred to the "new stuff" being a pale goldish beige. It sounds like another suspension is available at a different concentration. This is what I'm trying to track down.

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daveandtiff

Post   » Tue Oct 18, 2016 10:01 am


I hope your little one was able to recover from the dosing error, Talishan. Thinking of you...

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