Side effects of  NAC:  口炎, 噁心, 鼻溢(流清鼻水)

若有氣喘者,可同時給予支氣管擴張劑, 來減輕此藥可能引起罕見支氣管痙攣.

偶有蕁麻疹.

加入噴霧治療可能引發鼻咽和腸胃刺激, 出現鼻炎, 胃炎, 噁心和嘔吐. 

250-1500mg NAC 臨床運用上是安全而無副作用的

250 to 1,500 mg of NAC per day has been used in clinical studies with no adverse effects.

SIDE EFFECTS/CONTRAINDICATIONS:

People with diabetes mellitus and allergies to eggs, milk, or wheat should not take supplementary cysteine. People taking the drug may experience severe headaches when taking NAC. Cysteine supplements must be taken with vitamin C to prevent cysteine being converted to cystine, which may form kidney or bladder stones. People with kidney or liver disease should consult their doctor before taking supplementary cysteine.

有糖尿病或對蛋 奶  小麥過敏勿用

與維他命C併用 以避免cysteine轉變成cystine  因此而泌尿系統結石(腎  膀胱)

肝 腎病人應小心使用