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Calculating Sulfa Powder Doses

Discussion in 'Peafowl' started by casportpony, Aug 10, 2016.

  1. casportpony

    casportpony Team Tube Feeding Captain & Poop Inspector General Premium Member

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    [​IMG]


    Package weighs 107g
    Package contains 94.6g of Sulfadimethoxine
    Package is therefore 94.6 ÷ 107 = 0.884 = 88.4% pure (12% filler)

    [​IMG]

    Package weighs 535 grams
    Package contains 473 grams of Sulfadimethoxine
    Package is therefore 473 ÷ 535 = 0.884 = 88.4% pure (12% filler)


    88.4% = 884 mg per gram
    One teaspoon weighs ~3 grams, so one teaspoon = 2652 mg per teaspoon

    Per gallon directions on the package
    Chickens = 0.05% = 1892.5 mg per gallon for 5 days
    Turkeys = 0.025% = 946.25 mg per gallon for five days


    Okay... but what if you want to dose an individual orally? That's where it will
    get tricky.


    I'm going to pick a dose of 50 mg/kg and a 100 gram chick
    100 grams = 0.1 kg, so it's 0.1 x 50 = 5 mg needed for a chick that weighs
    100 grams.


    Most people don't have a gram scale, so I think the easiest way to dose a
    100 gramchick at 50 mg/kg would be to mix 1/4 teaspoon (221 mg) in
    10 ml of water. Now you have 10 ml of water = 22.1 mg/ml.
    0.1 x 50 / 22.1 = 0.23 (0.226) ml per 100 grams.


    Gotta go think about this and double check, but will come back and update it.


    -Kathy
     
    Last edited: Aug 11, 2016
  2. q8peafowl

    q8peafowl Chillin' With My Peeps

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    Thank you.
     
  3. KsKingBee

    KsKingBee Overrun With Chickens

    I would like to publicly thank Kathy for helping me with dosing my sick chicks. In another thread I explained that my flawed math let to dosing my chicks by ten times too much. The sulfa drugs are fairly safe and it did not harm the birds but was way over the dosage my vet prescribed of 50 mg per kg.

    On the upside the SulfaMed-G was very effective as confirmed by my fecal float exams. Pre-treatment slide showed more cocci than I could count and after three days of (over) dosing the slide was completely clear showing zero cocci.
     
    1 person likes this.
  4. Birdrain92

    Birdrain92 Overrun With Chickens

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    How many birds is it suppose to treat? With some medicines they will list how many birds it treats. Such as like 10 grams of the active drug treats 25 chickens.
     
  5. casportpony

    casportpony Team Tube Feeding Captain & Poop Inspector General Premium Member

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    It depends on how much your birds drink.

    Dosage and Administration
    Species

    Concentration

    Use Directions
    Chickens

    0.05%​

    Contents of 107 g packet to 50 gallons of water,
    Contents of 535 g packet to 250 gallons of water, or
    3 scoops to 50 gallons of water
    Turkeys

    0.025%​

    Contents of 107 g packet to 100 gallons of water,
    Contents of 535 g packet to 500 gallons of water, or
    3 scoops to 100 gallons of water



    Given orally it will depend on the dose you give them each day, but I suspect it will treat many.

    -Kathy
     
  6. KsKingBee

    KsKingBee Overrun With Chickens

    Any idea of how much a 'scoop' is?
     
  7. casportpony

    casportpony Team Tube Feeding Captain & Poop Inspector General Premium Member

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    No, but I'll try to figure it out. [​IMG]

    -Kathy
     

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