Migraine Meds
Given the following prescription for migraine therapy, what is the days' supply?
Zomig 2.5 mg
i qd prn x 4 boxes (3 tablets/box)
M: 12 tablets
Days supply = 12 days
Given the following prescription, what is the days' supply?
Toujeo Solostar 300u/mL (Pack size: 3 x 1.5mL pens)
Sig: Inject 18u qd ud
M: 1 box
300 units x 4.5 ml = 1350 units/box
1350 units/18 units = 75 days
Rx : Mometasone 50mcg Spray - ii qd M: 2
140 doses/box
The days supply for the above Rx is 120 days.
M: 2 = 280 doses/4 sprays
days supply would be 70 days
*Remember 2 nostrils*
Instill 2 sprays into each nostril daily
Convert 600 mcg to grams
Divide by 1000 twice
= 0.0006 g
Round answers to the hundredths place if required.
Hyderm1% cream: Clotrimazole1% cream 2:3
m: iiiss oz
How many grams of Hyderm1% cream is needed to prepare this compound? Round to hundredths place if required
Mitte : 105 gm
5 parts = 2:3
2/5 x 105 gm = 42 gram of hyderm
How much clotrimazole cream? 3/5 x 105 = 63 gm
Another way to find the answer?
Given the following prescription for migraine therapy, what is the days' supply?
Sumatriptan 100mg
i ud prn x 5 boxes (6 tablets/box)
Maximum dose 200 mg/day
30 tablets/2 tablets per day (maximum dose)
= 15 days
Given the following prescription, what is the days' supply?
Ozempic 4mg/3mL Prefilled Pen
Sig: Inject 1 mg once weekly ud
M: 4 boxes
1 mg once weekly, each box has 4 mg = 28 days
so 4 boxes should last = 112 days
How many ml would we dispense?
Convert 25% v/v to parts per volume
25/100 = 1/4
Ratio 1:4 v/v
Convert 4 drams to mL
1 gram = 1 mL
1 dram = 5 gm
4 drams = 20 gm which is 20 mL
Round answers to the hundredths place if required.
Urea 45% w/w
HC 3% w/w
in Vaseline
m: v oz
How many grams of urea should be used to prepare this compound?
How many grams of Vaseline is needed? 78 gm
Mitte = 150 gm
Urea 45% = 0.45 x 150 gm = 67.5 gm
or 45/100 x 150 gm = 67.5 gm
How many grams of HC 3% w/w?
3/100 x 150 gm = 4.5 gm
Given the following prescription for migraine therapy, what is the days' supply?
Rizatriptan 10 mg ODT
i ud prn x 3 boxes (6 tablets/box)
Maximum dose 20 mg/day
18 tablets/ 2 tablets per day
= 9 days
Jennifer is a senior who requires blister packs. Her daughter brings a new prescription to the pharmacy:
Synthroid 88 mcg tablet - 44 mcg qd
Furosemide 40 mg - i qam q2d
Gabapentin 300 mg - ii tid
Acetaminophen 325 mg - i tid & iii qhs
X 3/12 R: 2
What is the dispense quantity for each medication if they are blister-packed?
furosemide 0.5 days x 28 days = 14 tablets
gabapentin 6 tablets/day x 28 days = 168 tablets
acetaminophen 6 tablets/day x 28 days = 168 tablets
Convert 2g/40 mL to mg%
2 g = 2000 mg
2000 mg/40 mL x 100 = 5000 mg%
= 5000 mg%
True or False
606 mL is equivalent to 0.606 L
How to change mL to L ?
divide by 1000
= 606 mL / 1000 = 0.606 L
Answer is TRUE
Clindamycin 2% w/v
q.s. simple syrup
m: vii fl oz
How many Clindamycin 300mg capsules are needed to make this compound?
M- means Mitte = 210 mls
2g/100 ml = x/210 ml = 4.2 g = 4200 mg
4200 mg/ 300 mg = 14 capsules of clindamycin
Given the following prescription for migraine therapy, what is the days' supply?
Naratriptan 2.5 mg
i ud prn x 4 packs (4 x 2 pack size)
Maximum 5 mg/day
M: 32 tablets /2 tablets maximum dose
= 16 days
A blister pack patient drops off the following prescription:
Alendronate 70mg - i weekly x 2/12
Refills: 3
How many tablets should be dispensed, and what is the total authorized quantity for this prescription?
blister pack dispense only 28 days = 4 tablets to dispense
authorized quantity = 32 tablets
Convert 5 lb 4 oz to mg
*It does not say on exam but round up to nearest tenth place or 1 decimal place*
1. Convert 5 lb to kg = 5/2.2 = 2.2727272727 kg
2. Convert kg to g = 2.2727272727 x1000 = 2,272.7272727 g
3. Add 4 oz (120 g) = 2392.7272727 g x1000 =
2,392,727.2727 = answer = 2,392, 727.3
Convert 1:1300 w/v to %
1/1300 x 100% = 0.08%
Round answers to the hundredths place if required.
A Pharmacy order vi fl oz of the following formula.
Calamine Powder 40g
Liquid Phenol 10mL
Zinc Oxide 6g
q.s. with distilled water to 100mL
How many grams of Calamine Powder are required to prepare this compound?
M: 180 mL
40g/100 mL =xg/180 mL = 72 g calamine powder
How many mL of liquid phenol?
10ml/100ml = xml/180 ml = 18 mL
How many grams of zinc oxide? 10.8 g
What is the final volume to q.s. using distilled water? 180 mL
Given the following prescription for migraine therapy, what is the days' supply?
Sumatriptan 100mg
i qd prn x 2 box (6 tablets/box)
M: 12 tablets
Because its daily (qd) it will be 12 days
Jamie calls the pharmacy to request a refill for 3 packs of her birth control - Marvelon 28.
Upon reviewing her records, you see that she currently has 252 tablets on file.
Jaimie also asks, "How many packs of Marvelon will I have left on file after this refill?"
There would be 168 tablets left/ 28 days = 6 pack left on file
*Remember 28 pack size total = 364 tablet*
*Remember 21 pack size total = 273 tablets*
A physician orders 260 mL of a 15% dextrose in water solution. The stock solution available is 50% dextrose in 10 mL ampules. How many milliliters of sterile water are required to fulfill this order?
alligation chart
50% (stock), 15% (desired) , 0% (water)
cross subtract = 50-15 = 35 parts -water and 15-0 = 15 parts - stock
ratio= stock:water = 15:35 = 50 parts
water = 7/10 x 260 =182 mL
Convert 2.5 qt to liters
1 quart = 960 mL
2.5 qt x 960 mL = 2400 mL/ 1000 = 2.4L