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A math/dosage question/challenge

njohnson1972njohnson1972 member
in Infertility

Ok, so I am to take 2 mg of Delestrogen.

The label says:

5mL Multiple Dose

20 mg/mL

 

So, I calculate that to be 0.1 mL or 0.1 cc.  Does that seem right?  That is such a small dosage.

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Re: A math/dosage question/challenge

  • 2bKEdwards2bKEdwards
    I calculate 0.5 ml  because 2mg/20mg x 5mL.  0.1 is the ratio used to calculate how many mL. 
    After 20 months, 5 IUIs, PCOS, Endo and IVF, our baby is here! Full IF history in blog
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  • njohnson1972njohnson1972 member

    See, I am so confused.  I was thinking the 5mL was the total volume in the vial.

    So, I did 2mg x ( 1mL/20 mg) = 0.1 mL

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  • Yellow_DaisyYellow_Daisy
    My eyes crossed just reading this...LOL!  I have no idea what you should do, but am seriously hoping no one ever expects me to figure this out with my meds.  Good Luck!~
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  • njohnson1972njohnson1972 member

    imageYellow_Daisy:
    My eyes crossed just reading this...LOL!  I have no idea what you should do, but am seriously hoping no one ever expects me to figure this out with my meds.  Good Luck!~

    After my last cycle, I am double checking everything!

    Plus, I am kind of nerdy that way!

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  • orange682orange682
    Can you call the pharmacy or speak with your RE?  Maybe either one of them will be able to give you the correct dosage of the pills you were given, and how many you need to take to have the right dosage.  I'm actually surprised it doesn't say it on your perscription. 
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  • 2bKEdwards2bKEdwards
    imagenjohnson1972:

    See, I am so confused.  I was thinking the 5mL was the total volume in the vial.

    So, I did 2mg x ( 1mL/20 mg) = 0.1 mL

    Hmmm, I would definitely check with someone at the RE's or pharmacy.

    After 20 months, 5 IUIs, PCOS, Endo and IVF, our baby is here! Full IF history in blog
    ~Life After Infertility~
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  • 2bKEdwards2bKEdwards
    Ok I think I'm wrong, you're right.  If there's 20mg per mL than 0.1mL.
    After 20 months, 5 IUIs, PCOS, Endo and IVF, our baby is here! Full IF history in blog
    ~Life After Infertility~
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  • lovemymonkeylovemymonkey
    imagenjohnson1972:

    Ok, so I am to take 2 mg of Delestrogen.

    The label says:

    5mL Multiple Dose

    20 mg/mL

     

    So, I calculate that to be 0.1 mL or 0.1 cc.  Does that seem right?  That is such a small dosage.

    I take that label to mean that there's a total volume of 5mL in the vial and the concentration of it is 20 mg/mL for a total of 100 mg in the entire vial.

    So if you need to take a 2mg dosage, you would need a 0.1mL injection. (20mg / 1 ml = 2mg / X ml, solve for X)

    It's been a long time though since I worked with Algebra so I wouldn't bet my life on it. ;-) 

    After 5 years of TTC, 3 IUIs, 5 IVFs, 2 FETs, multiple losses and an adoption that wasn
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  • etoyamaetoyama member
    Whoa! I have no idea! Wouldn't it depend on the density if the Delestogen?
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  • Temp935838312504158Temp935838312504158

    As a nurse, this is how I would calculate it:

    2 mg = dose ordered
    20 mg = dose available
    5 mL = volume available

    dose ordered / dose available x volume available

    2mg 
    20mg

    		 x 5mL

    Total: 0.5ml = 2mg

    But I would definitely ask the nurse or pharmacist just to clarify!

     

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  • Temp935838312504158Temp935838312504158

    As a nurse, this is how I would calculate it:

    2 mg = dose ordered
    20 mg = dose available
    5 mL = volume available

    dose ordered / dose available x volume available

    2mg 
    20mg

    		 x 5mL

    Total: 0.5ml = 2mg

    But I would definitely ask the nurse or pharmacist just to clarify!

     

    Report Reply
  • njohnson1972njohnson1972 member
    imagebubbas-mama:

    As a nurse, this is how I would calculate it:

    2 mg = dose ordered
    20 mg = dose available
    5 mL = volume available

    dose ordered / dose available x volume available

     

    2mg 
    20mg

    		 x 5mL

    Total: 0.5ml = 2mg

    But I would definitely ask the nurse or pharmacist just to clarify!

     

    That makes sense.  I definitely plan to ask my RE.  Thanks.

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