Prescription writing (trans 3 and 6)

Question 1

Parts of a prescription

Answer 1

A. Name and address of the patient
- Date
- age is written if the patient is a child
B. Superscription - R/ = “recipe” or “take thou of”
C. Inscription - Consists of the generic name of the drug, dosage form, amount per dose and/or strength of the preparation
D. Subscription - directions to the pharmacist
E. Signatura - “label” (directions to the patient
F. Prescriber’s signature - Included is the prescriber’s address, PRC#, PTR#, and Opium License number if the prescribed drug is regulated or prohibited

Question 2

A prescription for the treatment of malaria for Mia Lara, a single non-pregnant nurse, using Quinine sulfate tablet at a dose of 325 mg twice a day, for one week. (Quinine sulfate is available in 325 mg tablets)

Answer 2

A. Name and address of the patient
- Mia lara
- Quezon city
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Quinine sulfate tablet 325 mg
- Dispense no. 14
D. Subscription
E. Signatura 
- Label: Take 1 tablet twice a day for one week
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *Make sure to write the form of the drug (tablet)
• *Dosage = 2(/day) x 7 days = 4
• *For practice purposes, if the address is not given in the case, write a hypothetical one because during quizzes/exams, it has score points

Question 3

Write a prescription for Ella Mae Bono, 20 y/o, female, with urinary tract infection, using Levofloxacin 500 mg/day in 2 divided doses, good for 1 week. (Levofloxacin is available in 250 and 500 mg tablets)

Answer 3

A. Name and address of the patient
- Ella Mae Bono
- Quezon city
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Levofloxacin tablet 250 mg
- Dispense no. 14
D. Subscription
E. Signatura 
- Label: Take 1 tablet twice a day for one week
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 4

A prescription for Emma Hunyo, a 40kg 12 year-old female with asthma to be treated with Prednisone at a dose of 0.5mg/kg/day in 2 divided doses to be given after meals at 7:00am and 2:00pm for 1 week. Available preparation is Prednisone 5mg tablet.

Answer 4

A. Name and address of the patient
- Emma Hunyo, 12yo
- Quezon city
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Prednisone tablet 5 mg
- Dispense no. 28
D. Subscription
E. Signatura 
- Label: Take 2 tablets after meals at 7:00am and 2:00pm for 7 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *Dosage range (limit): 0.5mg/kg/day x 40kg = 20mg/day
• *Dosage =2 tablets per dose x 2times/day x 7 days= 28
• *For pediatric patients and elderlies (60 years and above), always include their respective ages.
• *For pediatric patients usually 7 years old and below, without certain maturity, use the term “give” instead of “take” at the label

Question 5

Write a prescription for Maria Sta. Ana, 55 year-old female from Pulilan, Bulacan, hypertensive, for a month’s supply of her maintenance medication of losartyan 50mg to be taken once day every after breakfast. Losartan is available in 50mg and 100mg tablets.

Answer 5

A. Name and address of the patient
- Maria Sta. Ana, 55yo
-Pulilan, Bulacan
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Losartan tablet 50mg
- Dispense no. 30
D. Subscription
E. Signatura 
- Label: Take 1 tablet once a day after breakfast for 30 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 6

A prescription for Riza Jose, 15 year old female from Muntinlupa for preseptal cellulitis of the left periorbital area using Cefuroxime at a dose of 500mg every 8 hours round the clock for 10 days (Available: 250mg and 500mg capsules).

Answer 6

A. Name and address of the patient
- Riza Jose, 15yo
- Muntinlupa
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Cefuroxime capsule 500mg
- Dispense no. 30
D. Subscription
E. Signatura 
- Label: Take 1 capsule every 8 hours round the clock for 10 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 7

A Prescription for Cris Generoso, a 28 year old , male amateur boxer, from Cubao, Quezon City, who requires Mefenamic Acid, 500 mg, every 8 hours round the clock, for 3 days, with food. Mefenamic Acid is available in 250 mg and 500 mg capsules

Answer 7

A. Name and address of the patient
- Cris Generoso
- Cubao, Quezon City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Mefenamic Acid Capsule 500 mg
- Dispense no. 9
D. Subscription
E. Signatura 
- Label: Take one capsule every 8 hours round the clock for 3 days, every after meals.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 8

A prescription for Tander Layt Ning, 65 years old male from Cavite for his joint pains using celecoxib at a dose of 200 mg every 12 hours round the clock for 3 days (Celecoxib is available in 200 and 400 mg capsules).

Answer 8

A. Name and address of the patient
-Tander Layt Ning, 65 yo
- Cavite
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Celecoxib capsule 200 mg
- Dispense no. 6
D. Subscription
E. Signatura 
- Label: Take one capsule every 12 hours around the clock for 3 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 9

REMEMBER
Multiple dose method is preferred over the Single Dose Method whenever prescriptions for powder or capsules containing single or multiple ingredients are made

Answer 9

This gives the pharmacist the exact measurements/total dosage to be taken by the patient, thus, is easier to prepare

Question 10

REMEMBER

Single dose method shifts the burden to the pharmacist and is not considered the best form

Answer 10

It is best that the physician do the calculations himself

**In cases of very potent drugs, the single dose method is preferred

Question 11

TOTAL NO. OF DOSES = Frequency of administration per day x Duration of treatment (days)

Answer 11

TOTAL DOSE = Usual Dose x Total No. of Doses

Question 12

REMEMBER
Papers should be used if the weight of a single dose of the drug (in prescriptions with single ingredient) or the weight of the combination of drugs (in prescriptions with multiple ingredients) is 600 mg or more

Answer 12

If the weight of the single dose is less than 600 mg, capsules should be used, provided the patient can swallow the solid dosage form

Question 13

Justin Bibera, a 10 year old, 30 kg boy from Beverly Hills, Taytay with typhoid fever, requires a prescription for chloramphenicol, using the powder form, to be given at 100 mg/kg/day in 4 divided doses, round the clock, for 10 days. Use MULTIPLE DOSE METHOD.

Answer 13

A. Name and address of the patient
- Justin Bibera, 10 years old
- Beverly Hills, Taytay
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Chloramphenicol powder 30 g
- Divide into 40 equal parts and dispense as papers
D. Subscription
E. Signatura 
- Label: Place contents of paper in ¼ glass of water and take every 6 hours round the clock, 4 times a day, for 10 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *The computation by multiple dose is as follows Total no. of doses = frequency of administration x duration of treatment: 4 x 10 = 40
• *Total dose = usual dose x total no. of doses: 30 kg x 100 mg/kg/day x 10 days = 30 g

Question 14

A prescription for Bhoy, a 5-year old boy from San Juan weighing 15 kg, who was diagnosed to have pharyngitis to be given Amoxicillin in powder form, of a dose of 50 mg/kg/day in 3 divided doses round the clock for 7 days. (Use SINGLE METHOD)

Answer 14

A. Name and address of the patient
- Bhoy Abunda, 5 y.o.
- San Juan
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Amoxicilln 250 mg
- For one paper. Make no. 21.
D. Subscription
E. Signatura 
- Label: Place the contents of one paper in ¼ glass of water and take 3 times a day every 8 hours round the clock for 7 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *Dose: 15 kg x 50 mg/kg/day = 750 mg of Amoxicillin is required per day
• *Total dose: Dose/Number of preparation = 250mg
• *Technically, since the computed weight of the single dose is less than 600 mg (250 mg), the powdered drug should be placed in capsules. But since the patient is a 5-year old child, he may have difficulty in swallowing the capsule, so we dispense it in papers instead.

Question 15

A prescription for Ellen Arce, a 30 yo female with constipation using Bisacodyl for 10 mg suppository once a day at bedtime for 2 doses. Available on 10 mg suppositories.

Answer 15

A. Name and address of the patient
- Ellan Arce
- San Juan
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Bisacodyl suppository 10 mg
- Dispense no. 2
D. Subscription
E. Signatura 
- Label:Insert 1 suppository into the anus once daily at bedtime, for 2 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *Always indicate the DRUG ROUTE. Otherwise, the patient would not know how to use the drug. She might mistake it as a drug taken orally.
• *Do not forget to indicate (and emphasize) the specific time of the day in which the drug shall be taken (in this example, at bedtime).
• *Assume that the suppository will be used for 2 consecutive days since it is not specifically indicated

Question 16

Joseph Miranda is a 13 year old male student from Cainta, Rizal, who requires 375 mg Paracetamol and 200mg Ibuprofen for his swollen ankle, to be taken every 6 hours for 5 days, round the clock, with food. Write him a prescription using the MULTIPLE DOSE METHOD.

Answer 16

A. Name and address of the patient
- Joseph Miranda, 13 y.o.
- Cainta, Rizal
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Ibuprofen 4.0 g
- Paracetamol 7.5 g
- Mix and divide into 20 equal parts and dispense in capsules.
D. Subscription
E. Signatura 
- Label: Take one capsule 4 times a day every 6 hours, round the clock, for 5 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

• *The Ibuprofen was written first because it serves as the “basis” drug. It is the main drug that addresses the patient’s complaint, which is the swollen ankle.
• *IBUPROFEN Dosage: 200 mg x 4 x 5 days = 4000 mg or 4.0 g
• *PARACETAMOL Dosage: 375mg x 4 x 5 days = 7500 mg or 7.5 g
• *If the weight of the dose of the drug is greater than or equal to 1000 mg, we can now write it in grams. When expressing drug dose weight in grams, it should be written in a one decimal place.

Question 17

Write a prescription for Emily Tho 25 y/o from Caloocan City with headache associated with common cold using Phenylephrine 10mg and Paracetamol 500mg to be taken in capsule form 3 times a day for 3 days. (Use Single Dose Method)

Answer 17

A. Name and address of the patient
- Emily Tho
- Quezon City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Phenylephrine 10 mg
- Paracetamol 500 mg
- Mix. For one capsule. Make no. 9.
D. Subscription
E. Signatura 
- Label: Take 1 capsule three times a day for three days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 18

Max Lucindo, 48 years old, male, from Marikina City will need treatment for dyslipidemia. Make a prescription for a mixture of ezetimibe powder 10mg and simvastatin powder 20mg, to be given once daily for 30 days. Use Multiple Dose Method.

Answer 18

A. Name and address of the patient
- Max Lucindo
- Marikina City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Ezetimibe 300 mg
- Simvastatin 600 mg
- Mix and divide into 30 equal parts and dispense as capsules.
D. Subscription
E. Signatura 
- Label: Take 1 capsule a day for 30 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 19

A prescription for Gina Co, 15 years, for the relief of asthma using Salbutamol metered dose inhaler at a dose of 1 puff every 6 hours as needed for difficulty of breathing. Available preparation: Salbutamol 100mcg/actuation at 200 doses per metered dose inhaler.

Answer 19

A. Name and address of the patient
- Gina Co
- Marikina City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Salbutamol Metered Dose Inhaler 100 mcg/actuation
- Dispense No. 1.
D. Subscription
E. Signatura 
- Label: Take one puff every 6 hours as needed for difficulty of breathing.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 20

Total amount of drug = Dose per intake x Total number of doses

Answer 20

Total number of doses = Frequency of administration per day x Duration of treatment in days

Question 21

Boy Senoja, 5y/o who underwent inguinal hernia repair, is to be given Ibuprofen for post-op pain at dose of 5-10 mg/kg/dose every 8 hours RTC for 48 hrs. He weighs 20 kg. (Ibuprofen is available as oral susp: 100 mg/5ml, 60 ml bottle; and forte oral susp 200 mg/5ml, 60 ml bottle)

Answer 21

A. Name and address of the patient
- Boy Senoja, 5 y/o
- Manila
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Ibuprofen oral suspension 100 mg/5ml
- Dispense No.1 bottle (60 ml)
D. Subscription
E. Signatura 
- Label: Give 1 teaspoonful every 8 hrs, round the clock for
2 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
o 5-10 mg/kg/dose x 20 kg= 100-200 mg/dose (We used 100 mg because it was the lower dosage)
o 100 mg x 3 doses/day (every 8 hrs RTC) x 2 days = 600 mg
o 100 mg/5ml= 600mg/X
o X= (600mg x 5ml)/ 100 mg = 30 ml (needed)
o Dispense 1 bottle (1 bottle is 60 ml)

Question 22

Approximate Equivalents of Household Measures

Answer 22

1 drop: 1/20 mL: 1 minim
1 teaspoonful: 5 mL: 1 dram
1 dessertspoonful: 8 mL: 2 drams
1 tablespoonful: 15 mL: ½ fluid ounce
1 wineglass: 60 mL: 2 fluid ounces
1 glassfu:l 250 mL: 8 fluid ounces

Question 23

A prescription for Pin Ronda, with a mixed GIT helminthic infection of pinworm and roundworm using mebendazole suspension at a dose of 100 mg bid given for 3 consecutive days. (Mebendazole is available in 20 mg/ml (chocolate flavour) in 30 ml suspension and 50 mg/ml in a 10 ml suspension)

Answer 23

A. Name and address of the patient
- Pin Ronda
- Manila
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Mebendazole suspension 20 mg/ml
- Dispense No. 1 bottle (30 ml)
D. Subscription
E. Signatura 
- Label: Give 1 teaspoonful 2 times a day for 3 days
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
o 100 mg x 2 dose/day x 3 days= 600 mg
o 100 mg/5ml=600mg/X
o X= 30 ml (needed)
o Use the 20 mg/ml in 30 ml suspension
o Dispense 1 bottle (30 ml)

Question 24

Bernardo Carpion is a 79 y/o M from Malate Manila, who is bed-ridden and can only tolerate liquid medications. Write a prescription for him for Ibuprofen syrup to be given at 200 mg three times a day after 3 meals for 5 days. Ibuprofen syrup is available as 100mg/5ml and 200 mg/5ml 60 mml bottles.

Answer 24

A. Name and address of the patient
- Bernardo Carpion, 79 y/o
- Malate, Manila
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Ibuprofen syrup 200mg/5ml
- Dispense No. 2 bottles (60 ml)
D. Subscription
E. Signatura 
- Label: Give 1 teaspoonful 3 times a day after meals for 5 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
o 200 mg x 3 dose/day x 5 days= 3000mg
o 200 mg/5ml= 3000mg/X
o X= 75ml (needed)
o Dispense 2 bottles (60 ml)

Question 25

Write a prescription for Loki Moki, 4y/o M weighing 13 kg, who suffers from urticarial. Give hydroxyzine at a dose of 1.5 mg/kg/day in 2 divided doses for 5 days. (Hydroxyzine is available as Iterax in 2 mg/ml syrup in 30 ml and 60 ml bottles)

Answer 25

A. Name and address of the patient
- Loki Moki, 4 y/o
- Manila
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Hydroxyzine (Iterax®) 2mg/ml
- Dispense No. 1 bottle (60ml)
D. Subscription
E. Signatura 
- Label: Give 1 teaspoonful 2 times a day for 5 days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
o 13 kg x 1.5 mg/kg/day= 19.5 mg/day
o 19.5 mg/day / 2 doses= 9.75mg/dose
o Available is 2mg/ml syrup. 2 mg x 5ml= 10mg/ml (1 teaspoon is 5ml)
o 19.5 mg/day x 5 days= 97.5 mg
o 9.75 mg/5ml= 97.5 mg/X
o X: 50 ml (needed)
o Dispense 1 bottle (60 ml)

Question 26

Allyana Grande, a 9-year-old girl from Mexico, Pampanga, requires a prescription for chemoprophylaxis against primary tuberculosis, each teaspoon dose containing Isoniazid 200 mg and Pyridoxine 10 mg in a vehicle of strawberry syrup to constitute 20% of the total bulk, to be given at 1 teaspoonful once daily before breakfast for 30 days.

Answer 26

A. Name and address of the patient
- Allyana Grande, 9 y.o.
- Mexico, Pampanga
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Isoniazid 6 (a)
- Pyridoxine 0.3 (b)
- Strawberry syrup 30 (c)
- Water, to make 150 (d)
- Mix.
D. Subscription
E. Signatura 
- Label: GIve one teaspoonful once daily, before breakfast for
thirty days
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
- if a number has no unit after it, it is considered as grams
(a) isoniazid: dose per take x total number of doses
- 200 mg x 30 doses = 6,000 mg
- 6,000 mg = 6 grams
(b) Pyridoxine: dose per take x total number of doses
- 10 mg x 30 doses = 300 mg
- 300 mg = 0.3 grams
(c) Strawberry Syrup: total bulk x 0.20
- 150 mL x 0.20 = 30 mL
(d) Water: amount of a single dose x total number of doses
-- 5 mL x 30 doses = 150 mL

Question 27

Write a prescription for Luis, 8 y/o from Bulacacn with UTI using Sulfamethoxazole 800 mg, Trimethoprim 160 mg in a vehicle of strawberry syrup to constitute 30% of the total bulk at a dose of 1 teaspoon every 12 hours round the clock for 7 days.

Answer 27

A. Name and address of the patient
- Luis, 8 y.o.
- Bulacan
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Sulfamethoxazole 11.20 (a)
- Trimethoprim 2.24 (b)
-Water, to make 70 (c)
- Strawberry syrup 21 (d)
- Mix.
D. Subscription
E. Signatura 
- Label: Give one teaspoonful every twelve hours round the clock, for seven days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**computation
- total number of doses: 2 times a day x 7 days = 14 doses
(a) Sulfamethoxazole: dose per take x total number of doses
- 800 mg x 14 doses = 11,200 mg
- 11,200 mg = 11.2 grams
(b) Trimethoprim: dose per take x total number of doses
- 160 mg x 14 doses = 2,240 mg
- 2,240 mg = 2.24 grams
(c) Water: amount of a single dose x total number of doses
- 5 mL x 14 doses = 70 mL
(d) Strawberry Syrup: total bulk x 0.30
- 70 mL x 0.30 = 21

Question 28

Zayn Malig, 7 years old, from Bel-Air Village, Makati has symptoms of allergic rhinitis. Make a prescription for a mixture of the following: each 5 mL dose containing Chlorphenamine
Maleate 1 mg, Phenylephrine 5 mg and orange syrup to constitute 20% of the total bulk. Dose for Zayn in 5 mL to be given 3 times a day for 3 days.

Answer 28

A. Name and address of the patient
- Zayn Malig, 7 y.o.
- Bel-Air Village, Makati
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Chloramphenamine 9mg (a)
- Phenylephrine 45mg (b)
- Orange syrup 9mL (c)
- Water, to make 45 mL (d)
- Mix.
D. Subscription
E. Signatura 
- Label: Give one teaspoonful three times a day for three days.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**Computation
- total number of doses: 3 times a day x 3 days = 9 doses
(a) Chlorphenamine Maleate: dose per take x total number of doses
- 1 mg x 9 doses = 9 mg
(b) Phenylephrine: dose per take x total number of doses
- 5 mg x 9 doses = 45 mg
(c )Water: amount of a single dose x total number of doses
- 5 mL x 9 doses = 45 mL
(d )Orange Syrup: total bulk x 0.20
- 45 mL x 0.20 = 9 mL

Question 29

Jeremy Adams, 61 years old, male, from La Vista, Quezon City has megaloblastic anemia due to Vitamin B12 deficiency. Make a prescription for mecobalamin 500mcg to be administered intramuscularly 3 times a week for duration of 8 weeks. Mecobalamin is available in an ampule containing 500mcg/ml.

Answer 29

A. Name and address of the patient
- Jeremy Adams, 61 y.o.
- La Vista, Quezon City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Mecobalamin Solution 500 mcg/ml ampule for injection
- Dispense No. 24
D. Subscription
E. Signatura 
- Label: For injection. Inject 500mcg or 1ml intramuscularly three times a week for eight weeks. Rotate injection sites.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 
**If the site of injection is intramuscular and will inject for multiple times, it is better to rotate injection sites.
Total no. of doses: Frequency of administration per week x Duration of treatment in weeks 
= 3 x 8 = 24

Question 30

Write a stat prescription for Philip Mori, 30 y/o suffering from an allergic reaction not responding to oral preparations, using diphenhydramine hydrochloride, 50mg/ml intramuscularly. (Diphenhydramine is available in 50mg/ml ampule.)

Answer 30

A. Name and address of the patient
- Philip Mori, 30 y.o.
- Quezon City
- June 26, 2015
B. Superscription
- R/ 
C. Inscription
- Diphenhydramine hydrochloride solution 50mg/ml ampule for injection
- Dispense No. 1
D. Subscription
E. Signatura 
- Label: For injection. Inject 50mg or 1ml intramuscularly, STAT.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no.

Question 31

Peter Pang, is a 38 year old male, from Sta. Mesa, Manila. He needs ranitidine solution for his peptic ulcer, 50mg by slow IV injection, every 8 hours, round the clock for 3 days. Ranitidine solution for injection is available in 50mg/2ml
ampule.

Answer 31

A. Name and address of the patient
- Peter Pang, 38 y.o.
- Sta. Mesa, Manila
B. Superscription
- R/ 
C. Inscription
- Ranitidine solution 50mg/2ml ampule for injection
- Dispense No. 9
D. Subscription
E. Signatura 
- Label: For injection. Inject 50mg or 2ml via slow IV injection after NST ( ), every eight hours, round the clock, for three days
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

Total no. of doses: Frequency of administration per day x Duration of treatment in days.
= 3 x 3 = 9
**NST = Negative Skin Test (for IV injection)

Question 32

Celia Lar, 50 y/o with breast cancer is to undergo chemotherapy. Write a prescription for anti-emesis with Ondansetron HCl dihydrate 8mg IV every 8 hours RTC for 24 hours.

Answer 32

A. Name and address of the patient
- Celia Lar, 50 y.o.
- Quezon City
B. Superscription
- R/ 
C. Inscription
- Ondansetron HCl dehydrate solution 8mg ampule Solution for injection
- Dispense No. 3
D. Subscription
E. Signatura 
- Label: For injection. Inject 8mg IV after NST ( ), every 8 hours, RTC for 24 hours
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
-Makati city
-License no.
PTR no. 

Total no. of doses = Frequency of administration per day x Duration of treatment in days.
= 3 x 1 = 3

Question 33

Leon Valdez, a 49-year-old engineer from West End, Dipolog City, with bleeding duodenal ulcers, is to be prescribed omeprazole 40 mg to be given by slow intravenous injection over 5 minutes once daily for 5 days. Omeprazole is available in vials containing 40 mg of the powdered drug with a 10 mL diluent

Answer 33

A. Name and address of the patient
- Leon Valdez, 49 years old
- West End, Dipolog City
B. Superscription
- R/ 
C. Inscription
- Omeprazole powder for Injection 40 mg/vial
- Dispense No. 5
D. Subscription
E. Signatura 
- Label: For injection. Dissolve the contents of one vial in 10 mL of diluent and inject 40mg intravenously and slowly over five minutes, once daily, for five days. Inject only after a negative skin test.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no. 
* Total number of doses = frequency of administration per day x duration of treatment in days
* 1 dose per day x 5 days = 5 doses
* Since the drug has its own diluent in this example, we dissolve the contents of one vial with its 10 mL diluent

Question 34

A stat prescription for acute thrombotic stroke for Franz España, a 65 year old obese patient, using streptokinase powder for injection at a dose of 1 500 000 IU slow IV over 60 minutes by infusion pump. (Streptokinase is available as a powder for injection in 6-mL vials containing 1 500 000 IU. For dilution, dissolve the powder in 6 mL sterile normal saline solution for injection.)

Answer 34

A. Name and address of the patient
- Franz España, 65 years old
- Quezon City
B. Superscription
- R/
C. Inscription
- Streptokinase powder for Injection 1 500 000 IU/vial
- Dispense No. 1
D. Subscription
E. Signatura
-Label: For injection. Dissolve the contents of one vial in 6 mL of sterile normal saline solution and inject 1 500 000 IU by slow IV over 60 minutes by infusion pump STAT.
F. Prescriber’s signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no.
* Since this is a stat prescription, we would need to write STAT
* One vial already contains the dose the patient needs, so we only need one.
* The patient has no given address, so we write one down.
* To dilute, we follow the instructions given.
* Doing a skin test depends on the prerogative of the doctor
since this is an emergency situation.

Question 35

Write a prescription for Greg, 20-year-old male from Mandaluyong for Brief Psychotic Disorder using olanzapine to be given intramuscularly at a dose of 5 mg every 12 hours for 3 days. (Olanzapine is available as Zyprexa® 10 mg powder for solution for injection per 2 mL vial)

Answer 35

A. Name and address of the patient
- Greg, 20 years old
- Mandaluyong
B. Superscription
- R/
C. Inscription
- Olanzapine powder (Zyprexa) for Injection 10 mg/2 mL vial
- Dispense No. 1
D. Subscription
E. Signatura
- Label: For injection. Dissolve the contents of one vial in 1.5 mL of distilled water and inject 10mg intramuscularly every 12 hours for 3 days. Rotate injection sites.
F. Prescriber’s signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no.
* Total number of doses = frequency of administration per day x duration of treatment in days
* Total number of doses = 2 doses per day x 3 days = 6 doses
* We need 3 vials because the patient needs 5 mg per dose and one vial contains 10 mg, good for 2 doses. Therefore, 3 vials contain 6 doses.
* We dissolve the contents of one vial in 1.5 mL of distilled water, because the result would be 2 mL once the drug is dissolved. 2 mL is the size of the vial. Adding the drug to the water increases the volume.
* If the brand name is given, it can be added. The physician can prescribe his preferred brand if he or she wishes.

Question 36

A prescription Mickie Moses for hospital acquired pneumonia using Co-amoxiclav 1 gram every 8 hours intravenously for 3 days. (Co-amoxiclav is available in vials containing 500 mg and 1000 mg of the powdered drug)

Answer 36

A. Name and address of the patient
- Mickie Moses
- Quezon City
B. Superscription
- R/ 
C. Inscription
- Co-amoxiclav powder for Injection 1000 mg/vial
- Dispense No. 1
D. Subscription
E. Signatura 
- Label: For injection. Dissolve the contents of one vial in 2 mL of distilled water and inject 1000mg intravenously every eight hours for three days. Inject only after a negative skin test..
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no. 

• Total number of doses = frequency of administration per day x duration of treatment in days
• Total number of doses = 3 doses per day x 3 days = 9 doses. Therefore, we need 9 vials.
• We chose the 1000 mg/vial since it contains already the dose needed by the patient (1000 mg or 1 gram)

Question 37

Write a prescription for budesonide repsule to be given as a single dose of 500mcg at 7:00 am or one hour prior to the schedule of surgery. Instruct the mother to empty the contents of one repsule into a nebulizer and administer via inhalation until aerosol generation ceases. The patient is Mary Anne Avendano, 3 years old from the City of Malolos in Bulacan. Budesonide repsule is available in 2mL preparations of 250 mcg/mL and 500 mcg/mL.

Answer 37

A. Name and address of the patient
- Mary Anne Avedano, 3y/o
- City of Malolos, Bulacan
B. Superscription
- R/ 
C. Inscription
- Budsonide Respule 250 mcg/ml x 2 ml respule
- Dispense No. 1
D. Subscription
E. Signatura 
- Label: Empty contents of one 250 mcg/2mL respule into a nebulizer and administer via inhalation until aerosol generation ceases at 7 am or 1 hour prior to surgery.
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no. 
**Take note that there s 2 ml in one respule

Question 38

A prescription for Mario Tel, a 67 year old male from Nueva Ecija, with a newly diagnosed angle closure glaucoma and to be given Timolol 5mg and Bimatoprost 0.03mg in eye solution form at a dose of 1 drop to both eyes at bedtime for 2 months (Available: Timolol 5mg and Bimatoprost 0.03mg in 3mL bottle at a drop volume of 40 microliter/drop.)

Answer 38

A. Name and address of the patient
- Mario Tel, 67 y/o
- Nueva Ecija
B. Superscription
- R/ 
C. Inscription
-Timolol/Bimatoprost Opthalmic Solution 5 mg /0.03mg (3mL)
- Dispense No. 2 bottles
D. Subscription
E. Signatura 
- Label: Instill 1 drop to each eye at bedtime for 2 months
F. Prescriber's signature
- Melvin James E. Penalosa, M.D.
- Makati city
- License no.
PTR no. 

Amount of solution: 40 microliter x 2 (since both eyes) x 60 Days
= 4 800 microliters or 4.8 mL