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math calculations with rectal drugs (1)

Calculate the total quantity and the total days supply for the following Rx: Promethazine 12.5 mg sup sig: 1 sup q 6 h prn nausea and vomit disp: 12 ------------------------------------------------------------ The doctor has prescribed the generic drug Promethazine 12.5 mg suppository, but some pharmacists may dispense the generic drug Promethegan 12.5mg suppository. The total quantity to be dispensed is 12 suppositories as stated by the doctor. The sig says: unwrap and insert one suppository rectally every six hours as needed for nausea and vomiting The patient will use 1 suppository four times daily, that is, the patient will use 4 suppositories daily. The total days supply will be 12 divided by 4 which is 3 days. It is worth noting that this drug is kept in the refrigerator.

What are the total quantity and the total days supply for the following Rx: Promethazine 25 mg #20 1 pr q6h prn nv ------------------------------------------------------------ The sig says: unwrap and insert one suppository per rectum every 6 hours as needed for nausea and vomiting The doctor has prescribed Promethazine 25 mg suppository, but some pharmacists may dispense Promethegan 25mg suppository while other pharmacists may dispense Phenadoz 25mg suppository. The total quantity is 20 suppositories as stated by the doctor. The patient will use 4 suppositories per day. So, the total days supply will be 20 divided by 4 which is 5 days. It is worth noting that this drug is kept in the refrigerator.

Calculate the total quantity and the total days supply for the following Rx: Phenergan 25 mg sig: i supp pr q4-6h prn n/v disp: 30 ------------------------------------------------------------ The doctor has prescribed the brand-name drug Phenergan 25 mg suppository, but some pharmacists will dispense the generic version Promethazine 25mg suppository while other pharmacists will dispense Promethegan 25mg suppository. The pharmacist could also dispense Phenadoz 25mg suppository. The total quantity to be dispensed is 30 suppositories as stated by the doctor. The sig says: unwrap and insert one suppository by rectum every 4 to 6 hours as needed for nausea and vomiting The maximum number of suppositories the patient may use in one day is 6 suppositories. So, the total days supply will be 30 divided by 6 which is 5 days. It is worth noting that this drug is kept in the refrigerator.

Calculate the total quantity and the total days supply for the following Rx: Cortenema 100mg/60mL suspension sig: apply rec qhs qty: 28 ------------------------------------------------------------ The doctor has prescribed Cortenema 100mg/60mL suspension, but the pharmacist will very likely dispense the generic version Hydrocortisone enema 100mg/60mL suspension. This medicine is for rectal use only. The box has 7 bottles and each bottle contains 60 mL The doctor has prescribed 28 bottles. If 1 bottle = 60 mL, then 28 bottles = 1680 mL So, the total quantity to be dispensed is 1680 mL In this case, the pharmacist will dispense 28 bottles, that is, 4 boxes. The sig says: apply rectally at bedtime The patient uses 1 bottle at bedtime. The patient will get 28 bottles. Then, the total days supply is 28 days.

What are the total quantity and the total days supply for the following Rx: Hydrocortisone 1% rectal foam sig: aaa tid disp: 1 bottle ------------------------------------------------------------ The pharmacist will very likely dispense the generic drug Proctofoam-HC 1% One bottle of this medication has 10 grams. This medicine is a topical aerosol to treat rectal conditions such as hemorrhoids. The active ingredients are hydrocortisone 1% and pramoxine 1% The sig says: apply to affected area three times daily The total quantity to be dispensed is 10 g Based on the bottle size and frequency of use, the technician can say that the total days supply is 5 days.

What are the total quantity and the total days supply for the following Rx: Canasa 1000 mg sup 1 supp rec qhs qty: 30 ------------------------------------------------------------ The doctor has prescribed the brand-name drug Canasa 1000 mg suppositories. It is used to treat inflammatory bowel disease. The total quantity to be dispensed is 30 suppositories as stated by the doctor. The sig says: unwrap and insert one suppository rectally at bedtime The total days supply is 30 days. This medicine is supplied in boxes of 30 individually plastic wrapped suppositories.

What are the total quantity and the total days supply for the following Rx: Rowasa enema 4 grams #7 use qhs ------------------------------------------------------------ The doctor has prescribed the brand-name drug Rowasa enema 4 grams, but the pharmacist will very likely dispense the generic version Mesalamine rectal suspension. This medication is supplied in a package with 7 x 60 mL unit-dose bottles. In other words, there are 7 bottles and each bottle has 60mL of medicine. In turn, the total quantity to be dispensed is 420 mL In this case, the pharmacist will dispense one package. The sig says: insert rectally at bedtime as directed The pharmacist will assume that the patient will use one bottle per day. In turn, the total days supply is 7 days. It is worth noting that the strength of this drug is 4 grams.

What are the total quantity and the total days supply for the following Rx: Mesalamine enema 4 gm i pr qhs disp: 14 ------------------------------------------------------------ The doctor has prescribed the generic drug Mesalamine rectal suspension. This medication is supplied in a package with 7 x 60 mL bottles. In other words, there are 7 bottles and each bottle has 60 mL of medicine. The doctor wants the pharmacist to dispense 14 bottles. If 1 bottle has 60 mL, then 14 bottles have 840 mL In turn, the total quantity to be dispensed is 840 mL In this case, the pharmacist will dispense 2 packages. The sig says: insert one enema rectally at bedtime The patient will use one enema, that is, one bottle at bedtime. In turn, the total days supply will be 14 days.

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