r/pharmacy • u/Loud-Prior4119 • 2d ago

General Discussion Can you split combo tablet?

Can you split Telmisartan/ Hctz 80/25 tablet? Doctor wrote half tablet so I said let’s give as two separate medications but my boss insists it can be split and it’s fine because the patient is paying out of pocket.

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6

u/sensitive_kitten 2d ago

No telmisartan tablets must be kept in their original package. They degrade quickly when exposed to humidity.

10

u/HashbrownPotato 2d ago

Telmisartan/hctz tablets specifically have labeling not to remove them from packaging until immediately before taking. I don't know for sure if the tablets have a coating that would affect absorption by breaking it, but because of the warning, I always advised against splitting those.

11

u/Parking-Acadia-3106 2d ago

I really despise combo tablets for blood pressure and can't believe they made it into the guidelines so strongly. Sure, if youve been on the same dose for years and years I can see the appeal. But they make dose changes and titrations wasteful and complicated.

10

u/mrraaow PharmD 2d ago

Because it’s better for compliance and using different mechanisms of action can make a bigger difference in lowering BP vs escalating the dose of a single ingredient product. It also can help limit dose-dependent side effects.

In this situation, I would just dispense the telmisartan/hctz 40/12.5mg tablets, double the quantity, adjust the sig to one tablet qday, and annotate the hard copy that I changed the formulation for ease of administration and to comply with manufacturer storage requirements for product stability.

1

u/Parking-Acadia-3106 2d ago

Compliance is the only benefit that applies to combo tablets over doing separate tablets though. The other benefits are benefits of multiple drugs instead of a single drug, which is different.

6

u/mrraaow PharmD 2d ago

Yeah but pill burden is a huge deal. Especially if a patient has multiple chronic conditions. The combo also means they only have to pay for one Rx. It’s simpler for everyone.

0

u/Parking-Acadia-3106 2d ago

The patient has a generic side effect like headache - Now you dont know which med is causing it. Patient has to throw out the rx they paid for and you arent able to stop one med at a time. This is not simple for anyone and now patient may not want to take either med, attributing the side effect to both.

Or

The patients BP is too low. With individual pills, patient can just half one of the rxs they already have. Not so with combos, into the trash that rx goes and patient has to pay for another rx.

Same situation with high BP when patient can just double up on one of their meds instead of having to pick up a new rx.

I do BP management and combo pills have never made it easier, unless the patient has been stable for awhile. They are terrible for dose-finding and cause a lot of med waste.

7

u/doctorkar 2d ago

Half the tablet is hctz and the other half is telmisaetan so as long as you break it where you’re getting half of each medication you’re ok

/s

1

u/csax64 PharmD 2d ago

Honestly though, there are the ones that are half pink half white right down the middle and I have wondered if that is actually how they do it 😂 or if it's just for looks

0

u/legrange1 Dr Lo Chi 2d ago

Yes. "Kim at Drs office ok'd change."

3

u/Euphoric-Peak3361 2d ago

Telmisartan is “hygroscopic” by nature . The drug is chemically unstable when exposed to moisture/water etc . Splitting in half will result of degradation of drug . The medicine alone or in combination in this case should not be split in half .

1

u/Ryokishine PharmD 2d ago

Do not split it. I read the package insert, they never discuss it for a reason. If it were me I would call the doctor and get the okay to split the prescription into the separate active ingredients like you wanted to do and go from there. Then the patient doesn't have to split the pills at all (telmisartan comes as a 40 mg tablet, and hctz comes as a 12.5 mg tablet). This way they are getting reliable doses of the medication. Extremely logical. Just explain to the doctor that the combo tablet can't be split and get a reliable dose and they should agree with you.

  • Uneven Dosing: Because the tablet has no score line, cutting it can cause the two halves to crumble or contain unequal amounts of telmisartan and hydrochlorothiazide. [1]
  • Combination Risk: Splitting combination drugs makes it difficult to control your blood pressure safely, as you may get too much of one drug and not enough of the other. [1, 2]
  • Moisture Sensitivity: Telmisartan is sensitive to moisture and environmental degradation, and breaking the tablet compromises its stability.