acetylcysteine can be used as an antidote in acetaminophen overdose

N-acetylcysteine is the best known antidote but panadol overdose is an emergency situation so get to a hospital as quickly as possible.

acetylcysteine

Acetylcysteine may be given before a CT scan to reduce the risk of contrast-induced nephropathy, a potential complication from the contrast dye used during the scan. Acetylcysteine can help protect the kidneys by promoting the excretion of the contrast dye and reducing kidney damage.

Some of the known side effects of acetylcysteine are nausea, vomiting, fever, sore throat, drowsiness. These are the common less serious side effects. More serious side effects are rash, and trouble breathing.