Those who should avoid taking guaifenesin are people with severe liver disease, severe kidney disease or people with phenylketonuria, kids that are younger than 4 years old and people that have known hypersensitivity reactions to guaifenesin or dextromethorphan or people that have a history of kidney stones.
The drug guaifenesin is used for helping you clear mucus or phlegm from your chest when you have congestion from a flu or cold.
Guaifenesin works to help clear mucus and phlegm by thinning the mucus and phlegm in the lungs and helps it come up better.
The drug guaifenesin is an expectorant which helps to thin mucus and loosen the mucus in your chest and airways, which makes it easier for you to cough up the mucus or phlegm.
It's also best to avoid taking guaifenesin at night as it can disrupt your sleep because the guaifenesin can stimulate coughing as it works to clear mucus.
The difference between Mucinex and guaifenesin is that guaifenesin thins and loosens mucus in your airways.
And Mucinex also known as dextromethorphan stops coughing from happening by shutting down the cough reflexes.
Although both guaifenesin and Mucinex contain guaifenesin as the active ingredient.
People who should not take guaifenesin are people with severe liver disease, severe kidney disease or people with phenylketonuria, kids that are younger than 4 years old and people that have known hypersensitivity reactions to guaifenesin or dextromethorphan or people that have a history of kidney stones.
The drug guaifenesin has no known severe, serious or moderate or even mild interactions with other medications so it's generally safe to take guaifenesin with other medications.
Once you take guaifenesin, it takes around 15 minutes to 30 minutes for guaifenesin to work and help with clearing mucus and phlegm.
If your cough or mucus or phlegm lasts longer than 7 days even when taking guaifenesin, you should let your doctor know.