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math calculations with oral inhalers (2)

Calculate the total quantity and the total days supply for the following Rx: Symbicort 160/4.5 #1 ii puffs bid 3 refills ------------------------------------------------------------ The doctor has prescribed Symbicort 160mcg/4.5mcg inhaler 10.2gm So, the total quantity to be dispensed will be either 10.2g or 11g depending on the pharmacy computer system. The sig says: inhale 2 puffs by mouth twice daily So, the patient has to inhale 4 puffs per day. The inhaler has 120 inhalations. So, the total days supply will be 120 divided by 4 which is 30 days. It is worth noting that the doctor has given 3 refills.

Calculate the total quantity and the total days supply for the following Rx: Symbicort 160/4.5 qty: 2 inhalers 2 puffs tid with aerochamber ------------------------------------------------------------ The doctor has prescribed Symbicort 160mcg/4.5mcg inhaler. Each inhaler has 10.2 grams. The doctor has prescribed two inhalers, that is, 20.4 grams. In this case, the total quantity to be dispensed will be either 20.4g or 21g depending on the pharmacy computer system. The sig says: use 2 puffs three times daily with aerochamber So, the patient has to inhale 6 puffs per day. Each inhaler has 120 inhalations and, in turn, two inhalers have 240 inhalations. So, the total days supply will be 240 divided by 6 which is 40 days.

What are the total quantity and the total days supply for the following Rx: Pulmicort 180 mcg flexhaler qty: 1 2 puffs bid ------------------------------------------------------------ The doctor has prescribed the brand-name drug Pulmicort 180 mcg flexhaler. It is a dry-powder inhaler (DPI). This inhaler provides 120 metered doses. The sig says: inhale 2 puffs by mouth twice daily The patient will inhale 4 puffs per day. Then, the total days supply will be 120 doses divided by 4 puffs which is 30 days. The total quantity to be dispensed is 1 flexhaler as stated by the doctor.

Calculate the total quantity and the total days supply for the following Rx: Aerobid-MDI 2 inhalations bid, morning and evening disp: 2 ------------------------------------------------------------ The doctor has prescribed Aerobid metered-dose inhaler. The content of this inhaler is 7 grams. The inhaler delivers 100 metered inhalations. The doctor wants the pharmacist to dispense two inhalers. If 1 inhaler has 7 grams, then 2 inhalers have 14 grams. So, the total quantity to be dispensed is 14 g In this case, the doctor will dispense two packs; each pack containing one inhaler. The sig says: use 2 inhalations by mouth twice daily (morning and evening) The patient will inhale 4 puffs per day. Also, the patient will get 2 inhalers. If 1 inhaler delivers 100 puffs, then 2 inhalers deliver 200 puffs. So, the total days supply will be 200 divided by 4 which is 50 days. It is worth noting that inhalations, puffs, and actuations have the same meaning and are used interchangeably. It is also worth noting that Flunisolide is the active ingredient in Aerobid.

Calculate the total quantity and the total days supply for the following Rx: Relenza 5 mg sig: ii inh bid ------------------------------------------------------------ The doctor has prescribed Relenza powder diskhaler (20 inhalations). The box contains 5 rotadisks and one diskhaler inhalation device. Each rotadisk contains four 5mg blisters. The rotadisk is placed into the diskhaler and the diskhaler pierces each blister of the rotadisk one at a time. To put it simply, the whole box provides 20 inhalations. So, the total quantity to be dispensed is 20 inhalations. The sig says: inhale 2 puffs by mouth twice daily The patient will use 4 inhalations per day. So, the total days supply will be 20 divided by 4 which is 5 days.

What are the total quantity and the total days supply for the following Rx: Relenza inh 10mg inh bid x 10 days #2 ------------------------------------------------------------ The doctor has prescribed Relenza powder diskhaler (20 inhalations). The whole box provides 20 inhalations. Each inhalation contains 5mg of powder. The doctor wants the pharmacist to dispense 2 boxes. We know that 1 box has 20 inhalations and, then, 2 boxes have 40 inhalations. So, the total quantity is 40 inhalations. The sig says: inhale 10 mg by mouth twice daily for 10 days We know that 1 inhalation contains 5mg of powder and, then, 2 inhalations contain 10mg of powder. In turn, we need to rewrite the sig directions. The final sig directions will say: inhale 2 puffs by mouth twice daily for 10 days The total days supply is 10 days as stated by the doctor. But, you may want to calculate the quantity and the days supply just for curiosity. The patient will inhale 2 puffs twice daily, that is, 4 puffs per day. Then, the patient will inhale 4 puffs daily for 10 days, that is, the patient will inhale 40 puffs total. So, the total quantity is 40 inhalations. The total days supply will be 40 divided by 4 which is 10 days. It is worth noting that this medicine is packaged in carton containing 1 diskhaler inhalation device and 5 rotadisks with a total of 10 doses. Each 10mg dose is provided by 2 inhalations (one 5mg blister per inhalation).

What are the total quantity and the total days supply for the following Rx: Spiriva 18 mcg 18 mcg inhaled daily 5 refills ------------------------------------------------------------ The doctor has prescribed the brand-name drug Spiriva HandiHaler oral inhalation. This medicine comes with 30 capsules and a HandiHaler inhalation device. The patient will place one capsule in the inhalation device and, in turn, will inhale from the mouthpiece. The dry powder formulation within the capsule is intended for oral inhalation only. Then, the total quantity to be dispensed is 30 capsules. The sig says: inhale one puff every day The patient will inhale 1 capsule through the inhalation device daily. In turn, the total days supply is 30 days. It is worth noting that 18 mcg is just the strength of the medicine in each capsule. Also, notice that the doctor has given the patient 5 refills.

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