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Dose vs. concentration: why your vial says a bigger number

Two different numbers describe your medication, and they don't mean the same thing:

  • Dose is how much medication you take each week — for example, 10 mg once a week. This is set by your provider, and it's what actually changes when you "increase your dose."

  • Concentration is how strong the liquid in the vial is — for example, 20 mg/mL means there are 20 milligrams of medication in every milliliter of liquid.

A higher concentration is not a higher dose

As patients move to higher weekly doses, Belle sometimes ships a more concentrated vial (for example, 20 mg/mL instead of 10 mg/mL) so the amount you inject stays a comfortable, small volume. The number of units you draw is calculated from both your dose and the vial's concentration — which is exactly why a unit count on its own doesn't tell you your dose.

"Can I jump to 20 mg?"

A 20 mg/mL vial does not mean you're on 20 mg. Your weekly dose only changes when your provider approves a dose increase — the concentration printed on the vial doesn't change it. If you'd like to increase your dose, we can start that review with your provider.

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