Haste potions created by a Alchemist with the Infusion ability should just be communal. Basically you create 6 haste potions with the one spell that effect anyone that drinks them. Might seem a bit over powered but don't forget everyone you hand it to has to spend the time to drink there own potion as opposed to the spell where one person casts the spell and everyone else gets the effects. 1 round in a fight that last 3-4 rounds like a lot of fights is a big sacrifice for everyone.
