Alright so the ingredients to make Paracetamol:

So in Left 4 Dead 2, there isn't the actual ingredients but let's see what we can do:

4 Pain Pills
3 Adrenaline Shots
1 Medkit (because why not)

Okay so first, get your good friend "Louis" who is the best in the business to help.

He will help you set up the Paracetamol as he has great experience with dru- i mean. He just has good experience alright?

IF YOU HAVE NO LOUIS:

You're cooked and i ain't telling how, i'm so useful right?

Are you done? Well this last step is for you.

So basically when after you put the ingredients together and told Louis to help, there is still one final touch.
You need to drop a molotov on all the ingredients and BOOM!

The Paracetamol will form.

Thank you, for reading and good luck on your making of Paracetamol!

-Guide by Swingo