Question: is mucinex good for a cold?
Answer: In addition to not helping your cough, it doesn't make your mucus thinner or help you make less of it. A study gave 295 adolescents and adults with a cold or cough 600 mg extended release Mucinex tablets twice a day for 8 days. It found that Mucinex was no more effective than placebo at getting rid of mucus buildup.