Indications
- Medication used for temporary relief of coughs from common cold, bronchitis, and other breathing illnesses.
- Not recommended for ongoing cough from smoking or long-term breathing problems without doctor’s direction.
- Guaifenesin is an expectorant that thins and loosens mucus, clearing congestion and easing breathing.
Dosage and administration
- Take the medication by mouth with or without food, as directed by the doctor, usually every 12 hours with a full glass of water.
- If self-treating, follow all directions on the product package; consult doctor or pharmacist for questions.
- Dosage based on age, medical condition, and treatment response; do not exceed 2400 milligrams in 24 hours.
- Do not crush or chew tablets; swallow them whole to avoid releasing the drug at once and increasing side effect risk.
- Drink plenty of fluids to help break up mucus and clear congestion.
- Notify the doctor if the condition returns, or if accompanied by persistent headache, fever, severe sore throat, rash, or worsening after 7 days.
- Seek medical help immediately if there’s suspicion of a serious medical problem.
Side effects
- Possible side effects include nausea or vomiting; inform doctor or pharmacist if they persist or worsen.
- If directed by the doctor to use the medication, the benefits are deemed greater than the risk of side effects.
- Serious allergic reactions are rare; seek immediate medical help for symptoms like rash, swelling, severe dizziness, or difficulty breathing.
- Not an exhaustive list of side effects; contact doctor or pharmacist for other observed effects.
Precautions
- Inform your doctor or pharmacist about any allergies to guaifenesin or other substances before taking it.
- Check with your pharmacist about inactive ingredients in the product that may cause allergic reactions.
- Share your medical history, especially breathing problems like emphysema, chronic bronchitis, asthma, or cough with blood or large amounts of mucus, with your doctor or pharmacist before using the medication.
- Before surgery, inform your doctor or dentist about all products you use, including prescription drugs, nonprescription drugs, and herbal products.
- Use guaifenesin during pregnancy only if clearly needed; discuss risks and benefits with your doctor.
- Consult your doctor before breastfeeding, as it is unknown if guaifenesin passes into breast milk.
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