math calculations with Sulamyd eye ophthalmic solution

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math calculations with Sulamyd eye solution

Calculate the total quantity and the total days supply for the following Rx:
Sulamyd Opht
disp: 15 mL
sig: 2 gtt ou q4h
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The doctor has prescribed an ophthalmic solution, Sulamyd
The pharmacist will very likely dispense the generic version Sulfacetamide sodium ophthalmic solution 15mL
The total quantity to be dispensed is 15 mL as stated by the doctor. In this case, the patient will receive one bottle of 15mL
Now, we need to convert 15 mL into drops.
Assume 1 mL = 20 drops and, then, 15 mL = 300 drops
The sig says: instill 2 drops into each eye every four hours
The patient will use 2 drops in each eye six times daily, that is, the patient will use 2 drops * 2 eyes * 6 which is 24 drops per day.
So, the total days supply will be 300 divided by 24 which is 12 days.
It is worth noting that some pharmacists may assume 1 mL = 15 drops

Calculate the total quantity and the total days supply for the following Rx:
sodium sulamyd 10% oph susp
disp: 1 bottle
2 gtt ou q8h
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Notice that the doctor wrote suspension, but there is no Sulamyd suspension for the eyes.
Sulamyd is an ophthalmic solution. But, the pharmacist will very likely dispense the generic version Sulfacetamide sodium ophthalmic solution 15mL
The total quantity to be dispensed is 15 mL
In this case, the patient will receive one bottle of 15mL
Now, we need to convert 15 mL into drops.
Assume 1 mL = 20 drops and, then, 15 mL = 300 drops
The sig says: put 2 drops into each eye every eight hours
The patient will use 2 drops in each eye three times daily, that is, the patient will use 2 drops * 2 eyes * 3 which is 12 drops per day.
So, the total days supply will be 300 divided by 12 which is 25 days.
It is worth noting that some pharmacists may assume 1 mL = 15 drops

What are the total quantity and the total days supply for the following Rx:
Na Sulamyd 10% oph drops
disp: 1 bottle
sig: 2 ou tid x7d
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The doctor has prescribed Sodium Sulamyd 10% ophthalmic solution, but the pharmacist will very likely dispense the generic version sulfacetamide sodium 10% ophthalmic solution 15mL
The doctor wants the pharmacist to dispense one bottle. We know that one bottle has 15mL and, therefore, the total quantity to be dispensed is 15mL
The sig says: instill 2 drops into each eye three times daily for 7 days
The patient will use 2 drops * 2 eyes * 3, that is, the patient will use 12 drops daily.
Assume 1 mL = 20 drops and then 15 mL = 300 drops
Now, the total days supply will be 300 divided by 12 which is 25 days.
It is worth noting that Na is the chemical symbol for sodium.