This is such a common concern that we see often from new patients!
Here is a message that came specifically from Hallandale pharmacy regarding this issue.
Although the vial is not entirely full, it contains the correct fill volume. In addition to the correct fill volume, the vial has a small amount of overfill (0.4 mL). Often patients confuse the "emptiness" of the vial for missing medication. Additionally, the dosing amounts are very small.
If you have any specific concerns regarding the amount in your vial, please reach out to the pharmacy here: https://partner.hallandalerx.com/patient-support