NovoLog® FlexPen® is prefilled, disposable and allows for simple dosing with its easy dosing mechanism. 1-unit increments for up to 60 units. The dosage of NovoLog® must be individualized. NovoLog® given by subcutaneous injection should generally be used in regimens with an intermediate or long-acting insulin. It should be injected immediately (within 5-10 minutes) before a meal. Active ingredients: insulin aspart.