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Guaifenesin

Guaifenesin

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What is Guaifenesin?

Guaifenesin is an over-the-counter expectorant that helps loosen and thin mucus in the airways, making it easier to cough up congestion. It is commonly used to relieve chest congestion caused by colds, bronchitis, and other respiratory illnesses. Learn about Guaifenesin uses, dosage, side effects, and how to take it safely.

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  • Cough that lasts longer than 7 days.
  • Cough with fever, skin rash, or ongoing headache.
  • This medicine may contain alcohol.
  • If you are pregnant or breast feeding, ask your doctor or pharmacist before using this medicine.
  • If your cough is caused by asthma, emphysema, bronchitis, or smoking, talk to your doctor before using this medicine.
How much does Guaifenesin cost without insurance?
The price of Guaifenesin without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save 60–90% off retail prices with a free Rx.com coupon.
What are the common side effects of Guaifenesin?
Common side effects of Guaifenesin may include: Cough that lasts longer than 7 days., Cough with fever, skin rash, or ongoing headache.. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Guaifenesin?
Generic versions may be available for Guaifenesin. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search guaiFENesin 100 Tablets on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Guaifenesin?
The cheapest pharmacy for Guaifenesin depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for guaiFENesin 100 Tablets near you.

Guaifenesin Coupons & Prices

Guaifenesin

What is Guaifenesin ?

Guaifenesin is an over-the-counter expectorant that helps loosen and thin mucus in the airways, making it easier to cough up congestion. It is commonly used to relieve chest congestion caused by colds, bronchitis, and other respiratory illnesses. Learn about Guaifenesin uses, dosage, side effects, and how to take it safely.

Prescriptions & Refills
Compare 60,000+ US pharmacies · save up to 90%
Guaifenesin Bottle — prescription drug image
Prescription
Guaifenesin 100 tablets (1)
43215 ·
43215 Change ZIP

Guaifenesin is an over-the-counter expectorant used to relieve chest congestion by thinning and loosening mucus in the lungs and airways. It is commonly found in cough and cold medications and is used to help make coughs more productive by allowing mucus to clear more easily. Guaifenesin is often recommended for symptoms caused by the common cold, bronchitis, influenza, and other respiratory conditions that produce thick mucus.


Unlike cough suppressants, Guaifenesin does not stop coughing. Instead, it helps your body clear mucus naturally, which can reduce chest congestion and make breathing more comfortable. Staying well hydrated while taking Guaifenesin can improve its effectiveness, as fluids help thin mucus even further.


Common side effects of Guaifenesin are generally mild and may include nausea, stomach upset, dizziness, headache, or rash. Serious side effects are uncommon but can include allergic reactions such as swelling, hives, or difficulty breathing. Patients should always follow the dosing instructions on the product label and avoid taking more than the recommended amount.


Many people search for Guaifenesin dosage, Guaifenesin side effects, Guaifenesin for chest congestion, Mucinex vs Guaifenesin, how long Guaifenesin takes to work, and whether it is safe to combine with other cold and flu medications. Understanding how Guaifenesin works and when it is appropriate to use can help relieve congestion and support a faster recovery from respiratory illnesses.


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