Ok, so I was just throwing an alchemist at my party, and had a few small glitches -- I'm rather certain that I did things correctly per the rules (RAW), but I thought I should ask.
The rules indicate that an alchemist using an extract does so as if drinking a potion and it's a standard action. Now, to me, this indicates that the alchemist has already done the hard work of preparing the elixirs and so it's all standard actions from that point on to use them...
So, here come the "sticky" bits that had my players a little upset - again, I'm pretty sure I'm correct but would like to be sure:
#1. Drinking an extract = standard action -- even if the spell that the extract is made from has a 1 round casting time.
(In this case, the feral Master Chymst, after getting his/her greater invis dispelled and losing the ability to fast bomb the party into bits decided it was claw/claw/bitey time and Enlarged -- and I got complained at for the fact it happened right away).
#2. While drinking a potion provokes an attack of opportunity, an alchemist using an extract doesn't lose the extract or need to make a concentration check as a result of damage, sice they're not casting a spell. After getting hit by the flurrying monk (due to the loss of AC in the enlarging), he/she tossed back an elixir of Stoneskin (probably should have done them in the opposite order, really, but shh), got hit by the attack and then of course, I was protested at because he/she got DR10 anyway.
Now, I can see their point - alchemists being the equivalent of uninterruptable spellcasters is pretty severe - and while only being able to affect the self nerfs the utility of some spells (haste, for example), it has 0 drawback on self/personal/single-target spells anyway. At the same time, this seems to be what the rules say. I'd like to know if I was wrong so I can bump the CR for XP and loot for his/her "special" ability before next week's session.