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How many units on a 1 mL luer-lock syringe is a 2.5 mg dose at 3.33 mg/mL?

Asked 20 Jun 2025Modified 13 months agoViewed 16k times
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For reference: a 1 mL luer-lock syringe · 2.5 mg · 3.33 mg/mL.

I would rather understand the derivation than memorise the outcome.

Two people I asked gave two answers that differ by a factor of ten, which is suggestive.

Can someone show the working rather than just the answer?

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askedamara_nwachukwu20k2720 Jun 2025
3Is this U-100 or U-40? It changes the arithmetic by a factor of two and a half. – rota_site 3 months ago
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