7 mL guaifenesin syrup are contained in each dose of the prescription.
A drug known as guaifenesin, also marketed under the name Mucinex, is used as an expectorant to aid in clearing mucus from the airways by coughing. It is chemically an ether of glycerine and guaiacol. It's uncertain whether it lessens coughing. Children under the age of six should not use this.
200 mL total - 60 mL Phenergan = 140 mL guaifenesin
140 mL guaifenesin/200 mL Rx = X mL guaitenesin / 10 mL Rx dose
X = 7 mL guaifenesin per dose
The complete question is : How many milliliters of guaifenesin syrup are contained in each dose of the prescription below? (Answer must be numeric; no units or commas; round the final answer to the nearest WHOLE number.)
Rx:
Phenergan syrup 60mL
Guaifenesin syrup qs ad 200mL
Sig: ii tsp PRN cough
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