Acetylcysteine 600 mg Tablets can be taken with or without food, but consistency in timing enhances its effectiveness. Follow your doctor's instructions regarding dosage and frequency, which vary based on your condition. Dissolve the tablet in water and drink immediately. Continue treatment as prescribed. Common side effects include fever, nausea, vomiting, rash, and gastrointestinal discomfort. Inform your doctor if these side effects persist or worsen. Adequate fluid intake is recommended during treatment. Notify your doctor if you have asthma or are taking other medications. Discuss pregnancy or breastfeeding concerns with your healthcare provider.