This is a request I am getting electronically more and more often from pharmacies. I usually turn it down. Let me explain why.
For medications the patient is already on, I pretty much always refill them for a whole year in 90 day increments. Some people get their medications bubble packed in 4 week increments, and then I do the refill for 28 days with 12 refills.
But the reason I turn down the electronic requests I get from pharmacies to change my 30 day script to 90 days is that I have issued a new prescription that requires some kind of monitoring.
New starts of furosemide will require a potassium level and possibly a creatinine before the first 30 days are up. The same is true for spironolactone, in this case because it can raise potassium levels and carries a greater risk for causing kidney damage. The same is true for lisinopril, an ACE inhibitor, as well as the newer angiotensin receptor blockers. I had my own near miss with lisinopril more than 10 years ago, chronicled here.
A new start of a modern antidepressant, like the SSRIs, requires a clinical followup within a few weeks to make sure the patient isn’t getting suicidal or hypomanic. Even a 30 day script without followup is pushing your luck. 90 days in a non compliant patient missing their followup is medicolegally indefensible.
The other day I increased a PTSD patient’s prazosin for nightmares from 1 to 2 mg and sent in a 30 day script for the new dose. She still had some 1 mg capsules left. I neglected putting “FILL WHEN CALLS” on the “Sig” of the script. Boom, instantly the pharmacy shot off a “Patient requests 90 day script” refill request. You can’t split a capsule in two if, after a little while, you decide the higher dose doesn’t agree with you. In this case I authorized the 90 day script ONLY if they didn’t fill it until the patient had used up all her 1 mg capsules at two per day and knew that this dose agreed with her.
My bottom line is:
I am the doctor. I know what I’m doing. I work hard to save my patients money, and look up costs and copays every time I prescribe a new medication. Just like I carefully choose the medication and the dose, I deliberately choose which amount is appropriate for the situation.













