Can a Medlance be used with Alchemist's extracts? As written, the language is rather open ended, and it looks like it can: with a single dose of liquid, such as a pharmaceutical, a potion, or a poison. For that matter, what about Mutagens?
If so, that's pretty handy from an Action Economy standpoint - 50 GP to convert any extract into a Move Action, essentially, so long as you prep it ahead of time. (Or, if you have Infusion already, well, it's a bargain basement alternative to Poisoner's Gloves for your touch-attack Skinsend shenanigans.)