Question

*Solve the question with arbitrary number* Thank you!

1.

a. Each milliliter of an otic solution (Auralgan) contains the following ingredients. Calculate the amount of benzocaine required to manufacture (a given #) 12 mL containers of this product. (Answer to the nearest tenth of a gram – one decimal point)

Antipyrine                (a given amount) mg

Benzocaine              (a given amount) mg

Dehydrated glycerin   to make (a given volume) mL

b.

Given the following prescription for a child (a given #) pounds. If the dose of ranitidine for a child is (a certain # of mg/kg/day) how many of a (a given strength of a tablet) tablets are needed to prepare the following prescription? (Answer to the nearest whole tablet - no decimal point)

Rx

    Ranitidine _____

    Cherry syrup qsad 120mL

    Sig: One teaspoonful twice daily for 8 days

Answer 1

1.

a)Each milliliter of otic solution contains

Antipyrine 54 mg

Benzocaine 14 mg

Dehydrated Glycerin, to make 1 mL

Each milliliter of otic solution contains 54 mg Antipyrine

So 12 ml of otic solution contains 54 mg x 12 = 648 mg Antipyrine

Each milliliter of otic solution contains 14 mg Benzocaine

So 12 ml of otic solution contains 14 mg x 12 = 168 mg

Each milliliter of otic solution contains 1ml Dehydrated Glycerin

So12 ml of otic solution contains 1ml x 12 = 12 ml Dehydrated Glycerin

648 mg antipyrine

168 mg benzocaine

Dehydrated Glycerin ad 12 ml

Answer to the nearest tenth of a gram – one decimal point

0.6 g antipyrine

0.2 g benzocaine

Dehydrated Glycerin ad 12 ml

b) The dose of ranitidine for a child is (a certain # of mg/kg/day)

    Ranitidine _____

Given- Cherry syrup qsad 120mL

    Sig: One teaspoonful twice daily for 8 days

The sig directions imply that the medication is in the liquid form.

The strength of oral solution 75mg/5ml

Cherry syrup qsad 120mL contains 75 mg x 120 ml/5 ml = 1800 mg

1 tablet contains 75 mg Ranitidine

So in 1800 mg solution contains 1800 mg/75mg = 24 tablet.