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Question Regarding Calculation


Kpharma

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A prescription for alomide reads as follows

Alomide 0.1 % eye drops

Sig: 2 gtts ou qid X 30 days

How many milligrams of alomide are present in per day dose of the drug?

I thought

per day 16 drops.

1ml =20 drops

? 16 drops so it would be 0.8 ml

 

drug is 0.1%

100-------------0.1

0.8-------------?

So I got the answer as 0.8 mg

But the answer given in the book is 1.6 mg.

Please correct me If I am wrong?

Thank you

Kpharma

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I tried that calculation, and I came up with 0.8mg/day as well. the only possible way I can think of getting 1.6 is if they thought there were 10 drops/mL, but that does not make any sense. Is it possible that the book is wrong?
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  • 2 weeks later...
  • 3 weeks later...

It is because you are giving drops in both eyes so 0.8x2.

By the way, where are you studying the calculations from? I am trying to use APHA but it is such a mess, I'm lost! Particularly the beginning of the chapter about kinetics.

Can you answer me please?

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Hi,

I don't think you can again multiply it by 2, because 16 drops is for both the eyes. Please correct me if I am wrong.

 

I Agree with LOl. if you typed the problem correct it should be 0.8

and elieve me some times the answers are wrong, thats why they some up with new ed. to the book :P

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