9 (b) 33 grams. For calculations of this type the allegation method is very useful. We want to prepare 500 gm of 0.2 % salicylic acid by mixing talc (0 %) powder with 3 % of Salicylic acid powder.

3 % salicy 0.2 (3 % sali)
0.2 %

0 % talc (no salicy) 2.8 (0% sali)

Total 3.0 (0.2 % sali)

We want to find out how many grams of 3 % salicylic acid required

Total parts of 0.2% sali Parts of 3 % sali
3 parts 0.2 parts 500 ?

500 x 0.2 / 3 = 33 grams of 3% salicylic acid required.

10 (b) Plavix (Clopidrogel) is a blood thinning agent. Agents of this class generally act by inhibiting aggregation of platelets which is thought to be the primary mechanism of blood clotting. It is indicated for prevention of heart stroke in patients with CHF.

11 (b) Asthma is characterized by increased responsiveness of trachea and bronchi to various stimuli and narrowing of airways. It is associated with shortness of breath, chest tightness, wheezing and coughing. The Beta-2 receptors stimulation generally dilates the bronchial smooth muscles and helps in controlling asthma.

Beta-2 receptors blockers generally constrict the smooth muscles of bronchi and may even aggregate asthma.

Metoprolol is a Beta-1 and Beta-2 receptor blockers indicated for treatment of hypertension and should be carefully prescribed in patient with asthma. Other choices such as Accolate and Atrovent are indicated for treatment of asthma.

12 (b) The prescription of CII controlled drugs should be dispensed with specific quantity mentioned on prescription by physician. MS-contin is a controlled II drug and therefore correct dispensing quantity would be 60.

13 (b) Prescription of controlled drugs III, IV and V cannot be refilled more than 5 times. A patient must bring a new prescription after this allowable refill is executed. Prescriptions older than 6 months require a new prescription to fill.

14 (c) Otocort otic solution is intended for ear use only. It should not be applied to eyes and therefore the auxiliary label “ For ear use only” is required.

15 (c) Tamsulosin is the generic name of Flomax. It is indicated for treatment of B.P.H. All of the rest of the choices are colony stimulator agents. They generally help in stimulation of erythrocyte and granulocytes.

16 (d) 150 cc. Lanoxin is available in 0.05 mg/ml. Patient is taking 0.25 mg per day.

Drug ml of solution
0.05 mg 1 ml
0.25 mg ?

0.25 x 1 / 0.05 = 5ml

for 30 days supply = 30 x 5cc = 150cc

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