Guaifenesin Dosage
Medically reviewed by Drugs.com. Last updated on Dec 21, 2023.
Applies to the following strengths: 200 mg/5 mL; 200 mg; 100 mg/5 mL; 50 mg/5 mL; 600 mg; 1200 mg; 400 mg; 100 mg; 800 mg; 1000 mg; 300 mg; 575 mg; 50 mg
Usual Adult Dose for:
Usual Pediatric Dose for:
Additional dosage information:
Usual Adult Dose for Cough
Immediate release formulation: 200 to 400 mg orally every 4 hours as needed, not to exceed 2.4 g/day
Sustained release formulation: 600 to 1200 mg orally every 12 hours, not to exceed 2.4 g/day
Usual Pediatric Dose for Cough
Immediate release formulation:
less than 2 years: 12 mg/kg/day orally in 6 divided doses
2 to 5 years: 50 to 100 mg orally every 4 hours as needed, not to exceed 600 mg/day
6 to 11 years: 100 to 200 mg orally every 4 hours as needed, not to exceed 1.2 g/day
12 years or older: 200 to 400 mg orally every 4 hours as needed, not to exceed 2.4 g/day
Sustained release formulation:
2 to 5 years: 300 mg orally every 12 hours, not to exceed 600 mg/day
6 to 11 years: 600 mg orally every 12 hours, not to exceed 1.2 g/day
12 years or older: 600 to 1200 mg orally every 12 hours, not to exceed 2.4 g/day
Renal Dose Adjustments
Data not available
Liver Dose Adjustments
Data not available
Dialysis
Data not available
Other Comments
Guaifenesin should be administered with plenty of fluids.
Frequently asked questions
- Does Mucinex help you get pregnant?
- Does Mucinex help with Covid?
- What is the dose for an adult for Robitussin DM? How many times a day?
More about guaifenesin
- Compare alternatives
- Pricing & coupons
- Reviews (306)
- Drug images
- Side effects
- Patient tips
- During pregnancy
- Support group
- Drug class: expectorants
- Breastfeeding
Patient resources
Other brands
Mucinex, Robitussin Chest Congestion, Tussin, Mucinex Maximum Strength, ... +19 more
Professional resources
Other brands
Mucinex, Mucinex Maximum Strength
Related treatment guides
See also:
Levofloxacin
Levofloxacin is a fluoroquinolone antibiotic used to treat serious bacterial infections and prevent ...
Benzonatate
Benzonatate is a non-narcotic cough medicine used to relieve coughing. Includes benzonatate side ...
Ozempic
Learn about Ozempic (semaglutide) for type 2 diabetes treatment, weight management, cardiovascular ...
Ceftriaxone
Ceftriaxone systemic is used for bacteremia, bacterial endocarditis prevention, bacterial ...
Ciprofloxacin
Ciprofloxacin is an antibiotic belong to a group of drugs called fluoroquinolones. Learn about side ...
Doxycycline
Doxycycline is a tetracycline antibiotic used to treat many different bacterial infections such as ...
Azithromycin
Azithromycin is an antibiotic used to treat many different types of infections caused by bacteria ...
Diphenhydramine
Diphenhydramine is an antihistamine used to treat sneezing, runny nose, itching, hives and other ...
Augmentin
Augmentin is a prescription antibiotic combining amoxicillin and clavulanate to treat bacterial ...
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
