Guaifenesin

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Guaifenesin Recall

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Side Effects & Adverse Reactions

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Legal Issues

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FDA Safety Alerts

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Manufacturer Warnings

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FDA Labeling Changes

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Uses

Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus, drain bronchial tubes and make coughs more productive. Helps loosen phlegm and thin bronchial secretions in patients with stable chronic bronchitis.

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History

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Other Information

Guaifenesin (glyceryl guaiacolate) has the chemical name 3-(2-methoxyphenoxy)-1,2-propanediol. Its molecular formula is C10H14O4 with a molecular weight of 198.21. It is a white or slightly gray crystalline substance with a slightly bitter aromatic taste. One gram dissolves in 20 mL water at 25°C; it is freely soluble in ethanol. Guaifenesin is readily absorbed from the GI tract and is rapidly metabolized and excreted in the urine. Guaifenesin has a plasma half-life of one hour. The major urinary metabolite is β-(2-methoxyphenoxy) lactic acid.

Guaifenesin is an expectorant available for oral administration as:

Tablets — each containing 200 mg guaifenesin, USP.

Other ingredients: crospovidone, D&C red #30 aluminum lake, magnesium stearate, microcrystalline cellulose, polysaccharides, pregelatinized starch, silicon dioxide, sodium starch glycolate, and stearic acid.

Sources

Guaifenesin Manufacturers

Contract Pharmacy Services-pa

Guaifenesin | Contract Pharmacy Services-pa

Adults and children 12 years of age and older: One to 2 tablets (200 mg to 400 mg) every four hours, not to exceed 2400 mg (12 tablets) in 24 hours.

PATIENTS SHOULD BE ADVISED TO KEEP THESE AND ALL DRUGS OUT OF THE REACH OF CHILDREN AND TO SEEK PROFESSIONAL ASSISTANCE OR CONTACT A POISON CONTROL CENTER IMMEDIATELY IN CASE OF ACCIDENTAL OVERDOSE.

No Recall
Contract Pharmacy Services-pa

Guaifenesin | Contract Pharmacy Services-pa

do not exceed 6 doses in 24 hours take with a full glass of water adults and children 12 years of age and over 1 to 2 tablets every 4 hours children 6 to under 12 years of age 1/2 to 1 tablet every 4 hours children under 6 years of age consult a physician

No Recall
Physicians Total Care, Inc.

Guaifenesin | Physicians Total Care, Inc.

do not exceed 6 doses in 24 hours take with a full glass of water adults and children 12 years
of age and over 1 to 2 tablets every
4 hours children 6 to under 12 years
of age
½ to 1 tablet every

4 hours
children under 6 years of age consult a physician

No Recall
Avkare, Inc.

Guaifenesin | Avkare, Inc.

adults and children 12 years of age and older, take 1 tablet every 4 hours with a full glass of water while symptoms persist.Do not exceed 6 doses in 24 hours. children under 12 years of age do not use.

No Recall
Major Pharmaceuticals

Guaifenesin | Major Pharmaceuticals

do not exceed 6 doses in 24 hours take with a full glass of water adults and children 12 years
of age and over 1 to 2 tablets every
4 hours children 6 to under 12 years
of age
½ to 1 tablet every
4 hours
children under 6 years of age consult a physician

No Recall
Avkare, Inc.

Guaifenesin | Avkare, Inc.

do not exceed 6 doses in 24 hours take with a full glass of water adults and children 12 years
of age and over 1 to 2 tablets every
4 hours children 6 to under 12 years
of age
½ to 1 tablet every

4 hours
children under 6 years of age consult a physician

No Recall
Cardinal Health

Guaifenesin | Mylan Pharmaceuticals Inc.

The dosage must be determined by individual titration.

Hydrochlorothiazide can be given at doses of 12.5 to 50 mg per day when used alone. The initial dose of propranolol is 80 mg daily, and it may be increased gradually until optimal blood pressure control is achieved. The usual effective dose when used alone is 160 to 480 mg per day.

One propranolol hydrochloride and hydrochlorothiazide tablet twice daily can be used to administer up to 160 mg of propranolol and 50 mg of hydrochlorothiazide. For doses of propranolol greater than 160 mg the combination products are not appropriate, because their use would lead to an excessive dose of the thiazide component.

When necessary, another antihypertensive agent may be added gradually beginning with 50 percent of the usual recommended starting dose to avoid an excessive fall in blood pressure.

No Recall
Cardinal Health

Guaifenesin | Cardinal Health

Follow dosage below or use as directed by a physician.
• do not take more than 6 doses in any 24-hour period. age dose
adults and children 12 years and over

10 to 20 mL
(2 to 4 teaspoonfuls)
every 4 hours

children 6 years to under 12 years

5 to 10 mL
(1 to 2 teaspoonfuls)
every 4 hours

children 2 to under 6 years of age

2.5 to 5 mL
(½ to 1 teaspoonful)
every 4 hours

children under 2 years of age

consult a physician

No Recall
Cardinal Health

Guaifenesin | Cardinal Health

Follow dosage below or use as directed by a physician, do not take more than 6 doses in any 24-hour period.

age

dose

adults and children 12 years and over

10 to 20 mL (2 to 4 teaspoonfuls) every 4 hours

children 6 years to under 12 years

5 to 10 mL (1 to 2 teaspoonfuls) every 4 hours

children 2 to under 6 years of age

2.5 to 5 mL (1/2 to 1 teaspoonful) every 4 hours

children under 2 years of age

consult a physician

No Recall