Gilphex
Guaifenesin, Phenylephrine HCl · Tablet · Oral
Active ingredient
Drug Facts Active Ingredients (in each tablet) Guaifenesin 390 mg Phenylephrine HCl 10 mg
Purpose
Purposes Expectorant Nasal Decongestant
Uses
Uses Temporarily relieves the symptoms associated with a cough, the common cold, hay fever, or other upper respiratory allergies. Helps loosen phlegm (mucus), loosens nasal congestion, thin bronchial secretions, drain bronchial tubes, make coughs more productive,clear stuffy nose,clear nasal passageways, shrinks swollen membranes.
Warnings
Warnings Do not use this product more than the recommended dosage, or if you are now taking a prescription Monoamine Oxidase Inhibitor (MAOI) (certain drugs for depression, psychiatric or emotional conditions, or Parkinson's Disease), or for 2 weeks after stopping the MAOI drug. If you are uncertain whether your prescription drug contains an MAOI, ask a health professional.
Ask a doctor before use
Ask a doctor before use if you have heart disease. excessive phlegm (mucus). high blood pressure. diabetes. thyroid disease. difficulty in urination due to enlargement of the prostate gland. persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema.
Stop use and ask a doctor
Stop use and ask a doctor If nervousness, dizziness, or sleeplessness occurs. symptoms are accompanied by fever, rash, persistent headache, or excessive phlegm (mucus). cough and congestion do not improve within 7 days or tend to recur. These could be signs of a serious condition.
Keep out of reach of children
If pregnant or breast-feeding, ask a health professional before use. Keep out of the reach of children. In case or accidental overdose, get medical help or contact a Poison Control Center immediately.
Directions
Directions Do not exceed recommended doses in a 24 hour period Adults and Children 12 years and over: 1 tablet every 4 hours. Do not exceed 6 tablets in 24 hours. Children 6 to 12 years: 1/2 tablet every 4 hours. Do not exceed 3 tablets in 24 hours. Children under 6 years of age: ask a doctor.
Inactive ingredients
Inactive Ingredients Hydroxypropyl Methylcellulose, Magnesium Stearate, Maltodextrin, Microcrystalline Cellulose, Polyethylene Glycol, Povidone, Silicone Dioxide, Stearic Acid.
Questions?
Questions? Call 787-848-9114 Manufactured for: GIL PHARMACEUTICAL CORP. Ponce, Puerto Rico 00716 Revised Label: 03/22
Label text from the FDA structured product label by Gil Pharmaceutical Corp. (revised Oct 9, 2025). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Guaifenesin in 1 product
- Phenylephrine Hydrochloride in 1 product
Gilphex NDC products (1)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 58552-336 | Guaifenesin 390 mg/1; Phenylephrine Hydrochloride 10 mg/1 Tablet | Gil Pharmaceutical Corp. | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Gilphex used for?
Uses Temporarily relieves the symptoms associated with a cough, the common cold, hay fever, or other upper respiratory allergies. Helps loosen phlegm (mucus), loosens nasal congestion, thin bronchial secretions, drain bronchial tubes, make coughs more productive,clear stuffy nose,clear nasal passageways, shrinks swollen membranes.
Who makes Gilphex?
Gilphex is listed by 1 labeler in the FDA NDC directory, including Gil Pharmaceutical Corp..