Similar medicines derived from the guaiac tree were in use as a generic remedy by Native Americans when explorers reached North America in the 1500s, but guaifenesin was first approved by the Food and Drug Administration (FDA) in 1952.

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Address: Guai-Aid, Inc
Address: 8 Faneuil Hall MarketPlace, 3rd Floor, Boston, Ma
Telephone: 800-846-5525




  • Contains only U.S. Pharmacy grade guaifenesin as the active ingredient.
  • OTC Guai-Aid® is U.S. produced and does not require a Doctor's prescription
  • Effectively helps clear excessive mucus from sinus and bronchial pathways
  • Works quickly to help make coughs more productive
  • Available in easy-to-swallow gelatin & vegetarian capsules
  • Sugar-free, dye-free, and free of botanical extracts (salicylates)
  • Available in low does 200mg to 600mg strenghts

Most pharmacists agree that Guai-Aid/600®  Capsules are effective for a minimum of 4 to 6 hours between dosages! We are excited to report that many more of our customers are constantly telling us that they only need to take Guai-Aid/600®  twice a day to have the same benefits as their old brand! Talk to your doctor and find out how Guai-Aid/600®  can work for you.

Why Wait to Feel Better? Feel Better Now with Guai-Aid/600!


Taking Guai-Aid/600® will help clear up your congestion really fast. It helps to thin out and loosen congested mucus and bronchial secretions, making it much easier to breathe and expectorate. Your cough will be more productive and you will feel better fast. Guai-Aid/600® can also be taken on a daily basis to prevent unwanted congestion, especially during the cough, cold and allergy season. You will also find comfort knowing that Guai-Aid/600® does not interact with other medications and is safe for those suffering from chemical sensitivities and who may have sugar restrictions.


Why Is It So Important to Control Mucus?


We all need to expectorate – the act of coughing and spitting up Sputum from the respiratory track. Sputum is one of the more common materials we produce which carry impurities, foreign matter and a host of airborne particles trapped by the protective layers of mucus. Our mucus layer actually helps protect our bodies from these foreign particles and materials. Mucus also lines our nasal passages and works with our cilia (microscopic hair like filters) to trap and remove the impurities that we breathe in every day. Before we actually reach for a facial tissue, our natural defenses including mucus, protect us from from all of these airborne invaders so that we can go on breathing and feeling well.


So Why Control Mucus?


Have you ever experienced a bad cold or an acute bronchial chest infection, or just stayed in a smoke filled room to long? And suddenly your lungs and sinuses seem to become irritated and you just can’t seem to clear the congestion out of your chest. You may be experiencing the initial signs of congestion. These tracheobronchial type secretions become more active and start to get the better of you when you least expect it. You try to cough and blow your nose with a tissue, but these secretions are just not going away. This build up of mucus and phlegm and other types of materials that makes us cough, wheeze and sneeze is called congestion, and we need to control it from getting worse.


A Few Good Reasons to choose Guai-Aid/600®


  • Guai-Aid/600®  OTC capsules are U.S. made and do not require a doctor's prescription.
  • Contains only Pharmacy Grade Ultra-Pure Guaifenesin as the active ingredient!
  • They are sugar-free, dye-free, and free of botanical extracts (salicylates),especially well suited for the chemically sensitive and for those with sugar restrictions.
  • Effectively helps clear mucus from obstructive sinus, nasal and bronchial passageways.
  • Helps prevent common sinus and bronchial infections caused by mucus congestion.
  • Works quickly and makes coughs more productive without having to taste unpleasant syrups.
  • Guai-Aid/600®  is available in Easy-to-Swallow Capsules!

Uses:* Helps loosen phlegm (mucus) and thin bronchial secretions to rid the passageways of bothersome mucus. Helps make coughs more productive.

Directions:Adults and children 12 years and older ; Take 1 capsule (600mg) every 4 to 6 hours as needed or as directed by a doctor.

Easy to swallow:Easier to swallow than any tablet- for your comfort!

Children under 12 years of age: Consult a doctor.

Warnings: Do not exceed recommended dosage.

Do not exceed 4 capsules (2,400mg)in 24 hours or as directed by a doctor.

Other information: Store at room temperature 15 - 30 degrees Celsius (59 to 86 degrees Fahrenheit).

Do not use: for persistent cough, such as occurs with smoking, asthma, chronic bronchitis or emphysema, or if cough is accompanied by excessive phlegm (mucus), unless directed by a doctor.

Stop use and ask a doctor if: * symtoms are accompanied by fever, rash, or persistent headache * cough persists for more than 1 (one) week or tends to recur.

A persistent cough may be a sign of a serious condition.

If pregnant or breast-feeding, ask a health care professional before use.

Keep out of reach of children.

Although, Guai-Aid/600®  is officially classified as a "short acting" or "quick release" formulation of guaifenesin, most of our customers say it works just as well as the leading brand! Many of our customers have told us it works EVEN BETTER than the leading brand! It is absorbed faster and leaves the body quicker than "extended release" or "long acting" products which means that you are far less likely to "overlap" your doses, unlike other "long-acting" or "extended release" products! Guai-Aid/600®  is clearly designed with your health in mind!

In case of overdose, get medical help or contact a Poison Control Center immediatley.


Guai-Aid Product