Graduate Pharmacy Aptitude Test (GPAT) 2012 Solved Paper

Question : 70 of 148

Marks: +1, -0

Followings are some drug derivatives used to increase/decrease the water solubility of the parent drugs:
[P] : Rolitetracycline
[Q] : Erythromycin lactobionate
[R] : Chloramphenicol succinate
[S] : Erythromycin stearate
Choose the correct combination of statements.

Q and R are used to increase water solubility while P and S are used to decrease it
P, Q and R are used to increase water solubility while S is used to decrease it
Q S and R are used to increase water solubility while P is used to decrease it
Q and S are used to increase water solubility while P and R are used to decrease it

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