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Below are general NAC dosage recommendations depending on the symptoms/conditions you are treating:
- • Between 600–1,800 milligrams of NAC daily seems to be effective against many conditions; 600-milligram capsules taken two to three times a day is the recommended dosage to start with.
- • There’s evidence that 2,000 milligrams is safe for most adults.
- • Higher doses may be needed to treat certain chronic and degenerative diseases, including COPD, impaired glucose control and cancer. For example, doses of about 2,800 milligrams per day for up to three months seem to be effective for adults with COPD, according to some studies.
How long does it take for NAC to work?
This depends on the condition it’s being used to treat, the individual and the dosage taken.
It can work within hours to help treat overdoses and toxicity when given intravenously. It may take up to several months to work for other conditions, although it may work within several weeks for some people.
When should you take NAC, morning or night?
It can be taken any time of day that is most convenient. NAC is available in 500-, 600-, 750- and and 1,000-mg tablets. You will likely need to divide up your dose and take it twice or three times daily to see results, so consider taking it once it in the morning and again at night. *
