Medicament injection pen with automatic dosing

A system comprising:

• an analyte monitoring device configured to obtain analyte measurements of a user;
• a medicament injection pen to administer a medicament to the user;
• and
• at least a memory and a processor to perform operations comprising:
• calculating, based on the analyte measurements, a blood glucose level of the user;
• calculating an amount of the medicament to administer to the user in response to the blood glucose level of the user exceeding a threshold;
• and
• providing instructions causing the medicament injection pen to deliver the amount of the medicament to the user in response to receiving an indication that a needle of the medicament injection pen is inserted into the user.

A method comprising:

• calculating a bolus amount of medicament to administer to a user via a medicament injection pen in response to a blood glucose level of the user exceeding a threshold;
• receiving an indication that a needle of the medicament injection pen is inserted into the user;
• and
• operating a motorized pump of the medicament injection pen to deliver the bolus amount of the medicament to the user via at least one injection in response to receiving the indication that the needle of the medicament injection pen is inserted into the user.