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Can I split my weekly dose, and what if I run out of syringes?

M
Written by Matt Brice

Splitting your weekly dose

Yes, splitting your weekly tirzepatide dose into two smaller injections is a common way to take the edge off side effects like nausea and stomach discomfort. Your total weekly amount stays exactly the same, just spread across two injections.

How it works:

  • Divide your weekly units in half, as evenly as possible

  • Space the injections 3 to 4 days apart (for example, Monday and Thursday)

  • Use a fresh sterile needle and syringe every time. Never reuse needles

  • Keep your vial refrigerated between injections

  • Draw carefully so each half is measured right

Splitting does not use up your medication faster, and it does not change your increase timeline. It is the same weekly dose, taken in two parts. If side effects stick around even after splitting, message your provider: a dose reduction may be a better fit. And any change to your actual prescribed dose always goes through your provider.

If you run out of syringes

Splitting doses means twice the syringes, so you can run low. If that happens, compatible syringes are available over the counter at most pharmacies and online retailers.

What to look for (subcutaneous injections):

  • Insulin syringe, 1 mL (100 units)

  • 29 to 31 gauge needle

  • Needle length: half inch (12.7 mm)

Make sure the unit markings match what your dosing instructions reference. If you are unsure what to buy, message your provider through your Crossing account before purchasing.

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