Its not, it just helps with normal energy production
The main safety concern is the unknown effect on melanocytes (pigment-producing cells), particularly in people with a history of melanoma or atypical moles
Ameliorative Effects Of N-Acetylcysteine As Adjunct Therapy On Symptoms Of Painful Diabetic Neuropathy
Patients with Chronic Pulmonary Disease: Hydrocodone bitartrate and acetaminophen tablet-treated patients with significant chronic obstructive pulmonary disease or cor pulmonale, and those with a substantially decreased respiratory reserve, hypoxia, hypercapnia, or pre-existing respiratory depression are at increased risk of decreased respiratory drive including apnea, even at recommended dosages of hydrocodone bitartrate and acetaminophen tablets (see WARNINGS, Life-Threatening Respiratory Depression)
HOSPITAL ADMISSIONS AND OUTPATIENT SURGERY Whether or not a worker has a general annual deductible, most workers face additional types of cost-sharing (such as a copayment, coinsurance, or a per diem charge) when admitted to a hospital or having outpatient surgery