Certainly it's worth clarifying that saying that many people need more than one dose doesn't mean that Auvi-Q shouldn't have to "guarantee" that their device delivers the dose that it is intended to.

There are some things that can be done to improve the effectiveness of EpiPen/equivalent administration - while the product is designed to be able to be used through clothing, it is better to be removed where possible. Due to the dosage size, post injection site massage is recommended for better uptake from the muscles.

When to administer is also another question - arguably by the time the patient is in significant respiratory distress, it should have been administered earlier. This can be a balancing act between a 'sensitivity' and anaphylaxis. Realistically, as soon as there is a deterioration into multi-system response, Epi should be administered.

Certainly, other than cost there's no real motivator for the lay person to need to be trained to draw up epi into a syringe. But in terms of ambulances / medic units who stock epi (typically used in cardiac arrest), the requirement to stock EpiPens is an unneeded redundancy, and an expensive one at that.