Updated - Corid and Amprol (amprolium) Dosing

Treating Coccidiosis with Corid, Amprol, AmproMed - The Correct Amprolium Dose


When treating coccidisosis in my own birds I use the severe outbreak dose (0.024%) for 5 days, then the 0.006% amount for 7-14 days.

Liquid dose:
2 teaspoons per gallon for five days, then 1/2 teaspoon for 7-14 days.

Powder dose:
1.5 teaspoons per gallon for five days, then 1/3 teaspoon for 7-14 days.

Math and references below:



The FDA, FARAD, and the mfg's say this:

Source: http://www.farad.org/vetgram/ProductInfo.asp?byNada=033-165

Give amprolium at the 0.012% level as soon as coccidiosis is diagnosed and continue for three to five days. (In severe outbreaks, give amprolium at the 0.024% level.) Continue with 0.006% amprolium medicated water for an additional 1 to 2 weeks. No other source of drinking water should be available to the birds during this time. Make fresh daily.

So what does that mean?

20% Powder
0.024% = no less than 1.5 teaspoons per gallon
0.012% = no less than 3/4 teaspoons per gallon
0.006% = no less than 1/3 teaspoon per gallon

9.6% Liquid
0.024% = no less than 2 teaspoons per gallon
0.012% = no less than 1 teaspoons per gallon
0.006% = no less than 1/2 teaspoon per gallon







Due to some confusion on dose amounts regarding the powder, I decided to do some research and this is what I have so far. For those of you that use powder Corid, if you have been using 1/2 teaspoon per gallon (~270mg) you haven't been using enough.

The preventative dose (.006%) for Corid Powder is 1/3 teaspoon.
The preventative dose (.006%) for Corid liquid is 1/2 teaspoon.

The moderate outbreak dose (.012%) for Corid Powder is 3/4 teaspoon.
The moderate outbreak dose (.012%) for Corid liquid is 1 teaspoon.

The severe outbreak dose (.024%) for Corid Powder is 1.5 teaspoons
The severe outbreak dose (.024%) for Corid liquid is 2 teaspoon.

Corid mixing instructions for preventative (.006%) and moderate (.012%) outbreak dosing.
http://www.corid.com/SiteCollectionDocuments/CORID Slim Jim-All.pdf

Amprol 20% powder:
http://www.asp-inc.com/products/documents/prodinfo/a/amp128.pdf

Amprol 9.6% liquid:
http://www.asp-inc.com/products/documents/prodinfo/a/amp96.pdf

FDA recommendations:
http://www.accessdata.fda.gov/scripts/animaldrugsatfda/details.cfm?dn=013-149
"Chickens
Indications: For the treatment of coccidiosis.
Amount: Administer at the 0.012 percent level in drinking water as soon as coccidiosis is diagnosed and continue for 3 to 5 days (in severe outbreaks, give amprolium at the 0.024 percent level); continue with 0.006 percent amprolium-medicated water for an additional 1 to 2 weeks."


And this link has these instructions:
http://www.drugs.com/vet/amprol-9-6-solution-can.html
"Poultry - as Soon As Caecal Coccidiosis Is Diagnosed, Give 0.024% Amprolium In The Drinking Water For 5 To 7 Days. Continue The Treatment With 0.006% Amprolium Medicated Water For An Additional One To Two Weeks. No Other Source Of Drinking Water Should Be Available To The Birds During This Time."

Here's the math, let me know if I made an error.


  • There are 200mg of amprolium in every 1 gram of powder.
  • 1 ounce = 3.5 tablespoons = 28.35 grams
  • 200mg x 28.35 = 5670mg in 3.5 tablespoons of powder.
  • There are 10.5 teaspoons in 3.5 tablespoons
  • There are 21 1/2 teaspoons in 10.5 teaspoons
  • 5670mg divided by 21 1/2 teaspoons = ~270mg per 1/2 teaspoon
  • There are two 1/4 teaspoons per 1/2 teaspoon
  • 270 mg divided by 2 = 135mg per 1/4 teaspoon


Amount of Amprolium (Corid or Amprol) powder per 1/4 teaspoon
  • One 1/4 teaspoon = 135 mg
  • 1/2 teaspoon = 270 mg
  • 3/4 teaspoon =405 mg
  • 1 teaspoon = 540 mg
  • 1 & 1/4 teaspoons = 675 mg
  • 1 & 1/2 teaspoons = 810 mg
  • 1 & 3/4 teaspoons = 945 mg
  • 2 teaspoons= 1080 mg
Amount of Amprolium (Corid or Amprol) liquid per 1/4 teaspoon
  • One 1/4 teaspoon = 120 mg
  • 1/2 teaspoon = 240 mg
  • 3/4 teaspoons = 360 mg
  • 1 teaspoon = 480 mg
  • 1 & 1/4 teaspoons = 600 mg
  • 1 & 1/2 teaspoons = 720 mg
  • 1 & 3/4 teaspoons = 840
  • 2 teaspoons = 960 mg
There are 4.92892ml/teaspoon, but the numbers above were calculated using 5ml/teaspoon
Here is what's in 1-10ml of the liquid
  • 1ml = 96mg
  • 2ml = 192mg
  • 3ml = 288mg
  • 4ml = 384mg
  • 5ml = 480mg
  • 6ml = 576mg
  • 7ml = 672mg
  • 8ml = 768mg
  • 9ml = 864mg
  • 10ml = 960mg

Bottom line, 1 teaspoon (540mg) of powder is equal to 5.625ml of liquid and 1/2 teaspoon powder (270mg) is equal to 2.8125ml liquid.

1/2 teaspoon of 20% powder = 2.8125ml of 9.6% liquid - Both have 270mg of amprolium.
3/4 teaspoon of 20% powder = 4.21875ml of 9.6% liquid - Both have 405mg of amprolium.
1 teaspoon of 20% powder = 5.625ml of 9.6% liquid - Both have 540mg of amprolium.
1.5 teaspoons of 20% powder =8.4375ml of 9.6% liquid - Both have 810mg of amprolium.
1.75 teaspoons of 20% powder = 9.84375ml of 9.6% liquid - Both have 945mg of amprolium.
2 teaspoons of 20% powder = 11.25ml of 9.6% liquid - Both have 1080mg of amprolium.



And if that doesn't convince people, here is another way I did it:

From:
http://www.asp-inc.com/products/documents/prodinfo/a/amp128.pdf:

Dosage Level Mixing Directions
0.024% Dissolve 8 ounces of AMPROL 128 20% Soluble Powder in about five gallons of water in a 50-gallon medication barrel. Stir, then add water to the 50 gallon mark. Stir thoroughly.
0.012% Follow same directions as above but use 4 ounces of AMPROL 128 20% Soluble Powder.
0.006% Follow same directions as above but use 2 ounces of AMPROL 128 20% Soluble Powder.

Facts

  • One pack = 10 oz. (283.5 grams)
  • One ounce = 28.35 grams
  • One ounce of powder = ~3.5 tablespoons
  • 200mg amprolium per 1 gram

My twisted math for the .024% level
If 8 ounces (28.35g x 8 = 226.8 grams) are needed for 50 gallons, then 1/50 of that is needed for 1 gallon, right? So that would be 226.8 grams divided by 50 = 4.536 grams per gallon. (doing this as I type, so correct me if I'm wrong, please!)

So how much does a teaspoon of Corid or Amprol powder weigh? Anyone know? Well, time to break out my gram scale and do some weighing... also have a call into the mfg of Corid and I'm expecting a call back from them.

Just got a call back from them and it is 4.536 grams per gallon. He also said that it's a very safe product and the risk of overdosing is very slim.

-Kathy


Disclaimer:
In the past I have treated my chicken chicks with 2 teaspoons of the liquid for 5-7 days, that's it, but I *might* try the .006% follow up the next time I have to treat chicks.

Two articles:

Treating Coccidiosis with Corid, Amprol, AmproMed  - The Correct Amprolium Dose

Treating Coccidiosis with Corid, Amprol, AmproMed - The Correct Amprolium Dose

Treating Coccidiosis with Corid, Amprol, AmproMed The Correct Amprolium Dose Treatment 20% Powder 9.6% Liquid For 3-5 days 1.5 teaspoons per gallon 2 teaspoons per gallon then for 7-14 days 1/3 teaspoon per gallon 1/2 teaspoon per gallon When treating coccidisosis in my own birds I...
Corid Amprolium Oral Drench Instructions

Corid Amprolium Oral Drench Instructions

When treating a bird for coccidiosis one can give an oral drench in addition to their medicated water. Here are the instructions: 9.6% liquid - Do not dilute Give 0.1 ml per pound of body weight orally once or twice a day for 1-3 days. or 0.02 ml per 100 grams of body weight orally once or...
how much should you give orally? have a sick chick who isnt drinking or eating much. worried about cocci, but how to get corid to him effectively.. he doesnt even weigh a pound.. so what do i give him just one little drop?
 
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HI, my head is still spinning from the dosing directions.So asking for help!
my vet tells me to use:

I have 9.6 % liquid corid
I need 575 mg of corid per1 liter of water.
What does that mean using mls per GALLON ?
 
HI, my head is still spinning from the dosing directions.So asking for help!
my vet tells me to use:

I have 9.6 % liquid corid
I need 575 mg of corid per1 liter of water.
What does that mean using mls per GALLON ?
Use 10 ml per gallon,

Treatment20% Powder9.6% Liquid
For 3-5 days1.5 teaspoons per gallon2 teaspoons per gallon
then for 7-14 days1/3 teaspoon per gallon1/2 teaspoon per gallon
 
Last edited:
Use 10 ml per gallon,

Treatment20% Powder9.6% Liquid
For 3-5 days1.5 teaspoons per gallon2 teaspoons per gallon
then for 7-14 days1/3 teaspoon per gallon1/2 teaspoon per gallon
hi, thanks for answering me , but i need that specific calculation for all the flock members (I believe) until sensetivity results comes back from the lab. We think my silkie has a strain of coccidia that does not respond to corid or endocox since she has not responded to either treatment. Vet left this calculation on my voice mail and now is out of town to reach for a couple of days. It is my understanding that silkies are very sensitive to vitamin difeiciencies after treatment. A few vets say not true , but I have experienced one of my Silkies during treatment get tipsy and she could not keep her head up which a treatment of molasis and selenim and E gel brought her back. Yesterday was their first day on this med using 6ml per gallon (unsure of what 575mg was) and later that night that same silkie ( not the one that tested) started tipping over again. I am keeping her isolated now . This is why I am so caucious using this medication . Thank you
 
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If that's what your vet wants you to use, it's 6ml.

Math:
575 mg desired
Corid = 96 mg per 1 ml

575 / 96 = ~6 ml
thank you . is That 6 ml per GALLON ? Only because VET told me to give 575mg per 1 LITER.
I thank you again ( a pharmasist tried to help me and they told me 1.58ml per gallon. thats a big difference so Im sorry but I have to be positive in my understanding.

Thank you so much for your help!
 
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I have been told this by many people but I have been dealing with a Silkie who for 4 months straight with watery diarreha after treating with corid twice and tolirazuril once. So working close with vet to try to solve. thanks
 

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