Some Mucinex warnings include avoiding use of the medication in children under 12 years of age and not taking other cough and cold medicines featuring the same or similar ingredients, notes WebMD. An individual should follow all dosage directions and should make the prescribing physician or pharmacist aware of any breathing problems or coughing with blood or excessive mucus that he is experiencing.
It is unknown whether or not Mucinex passes into breast milk, so a breastfeeding mother should discuss the risks and benefits of this medication with her physician, explains WebMD. Likewise, a pregnant mother should also discuss Mucinex with her doctor, and should only use this medication when it is clearly necessary. An individual taking Mucinex should inform his physician before undergoing any surgical procedure.
A person should only take Mucinex tablets orally, with or without food, according to WebMD. It is important to follow a doctor's dosage recommendations, which typically call for one dose every 12 hours with a full glass of water. Individuals should not take more than 2400 milligrams of Mucinex in a 24-hour period. If an individual's condition returns, remains or worsens after seven days, he should inform his doctor. He should also consult with a physician if the condition is accompanied by a rash, a severe sore throat, a persistent headache or a fever.