>

r/stopdrinking helped me a lot when I decided to stop drinking.
"New treatment" = mental health
The headline made me think it was something actually new >

Could you take acetylcysteine to mitigate possible damage from the combo? >

You are not likely to be prescribed acetylcysteine by your doctor beforehand if you intend to take a pill before getting hammered and then take Tylenol for the headache, like 1 hour after stopping to drink. I should also state that the chemical composition of N-acetylcysteine contains a sulfur group, meaning the medication will smell. It is known the tablet form is horrible to take.
Just keep drinking water to stay hydrated. I drank a bunch of Pedialyte to stave off a headache with better success than Gatorade. >

I used to take N.A.C. as a health supplement it's an amino acid, and did not ever smell like sulfur, a bit like vitamins at worst. I took it on the basis it can help create glutathione, and reduce inflammation. It's actually one of the pills I will put in my mouth before finding water to drink since it tastes like a gelcap and then nothing if it dissolves. You can buy it at a health food store no dr. needed. No this doesn't mean you should od on tylenol or ever take it if you can avoid it. >

If I changed nothing, I would be part of this statistic. Instead, I found recovery cuz some other drunks carried a message that I could be sober and my life would get better. Thanks to AA, stopdrinking sub, SMART recovery, years of intensive therapy, and the gift of desperation caused by organ failure, I will celebrate 10 years clean and sober tomorrow.  
If you drink heavily, you feel that life is pointless, nothing good will ever happen for you, and that you lost the ability to control and enjoy your drinking, I was once in your shoes. The hardest thing I ever did was ask for help, but I believe in you. We can recover from a seemingly hopeless state of mind and body.