Presgen

guaifenesin, phenylephrine hydrochloride, dextromethorphan hydrobromide · Syrup · Oral

Over the counter Expectorant Sigma-1 Agonist Uncompetitive N-methyl-D-aspartate Receptor Antagonist

Active ingredient

Active ingredients (in each 5 mL, 1 teaspoon) Dextromethorphan HBr, 10 mg Guaifenesin, 200 mg Phenylephrine HCl, 5 mg

Purpose

Purpose Cough Suppressant Expectorant Nasal Decongestant

Uses

Uses
• helps loosen phlegm (mucus) and thin bronchial secretions to drain bronchial tubes
• temporarily relieves these symptoms occurring with a cold:
• nasal congestion
• cough due to minor throat and bronchial irritation

Warnings

Warnings Do not use
• if you are 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 do not know if your prescription drug contains a MAOI, ask a doctor or pharmacist before taking this product. Ask a doctor before use if you have
• heart disease
• high blood pressure
• thyroid disease
• diabetes
• trouble urinating due to enlarged prostate gland
• cough that occurs with too much phlegm (mucus)
• cough that lasts or is chronic such as occurs with smoking, asthma, chronic bronchitis or emphysema. When using this product, do not exceed recommended dosage. Stop use and ask a doctor if
• you get nervous, dizzy, or sleepless
• symptoms do not get better within 7 days or are accompanied by fever
• cough lasts more than 7 days, comes back, or is accompanied by fever, rash, or persistent headache. These could be signs of a serious condition. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of accidental overdose, get medical help or contact a Poison Control Center right away.

Keep out of reach of children

Keep out of reach of children. In case of accidental overdose, get medical help or contact a Poison Control Center right away.

Directions

​Directions do not take more than 6 doses in any 24-hour period. age dose Adults and Children 12 years of age and over 2 teaspoons (10 mL) every 4 hours Children 6 to under 12 years of age 1 teaspoon (5 mL) every 4 hours Children under 6 years of age do not use

Other information

​Other information
• ​Tamper evident feature ​: Do not use if security seal is torn, broken or missing.
• Store at controlled room temperature 15-30°C (59-86°F).
• Avoid excessive heat or humidity.

Inactive ingredients

Inactive ingredients citric acid, FD&C Red 40, flavor, glycerin, methylparaben, propylene glycol, propylparaben, purified water, sodium citrate, sucralose.

Questions?

Questions or comments? Call weekdays from 8AM to 4PM AST at ​1.787.767.2072

Label text from the FDA structured product label by Kramer Novis (revised Nov 12, 2025). Long sections are shortened; the complete label is on DailyMed.

Active ingredients

Presgen NDC products (1)

NDCStrength & formLabelerType
52083-632Dextromethorphan Hydrobromide 10 mg/5mL; Guaifenesin 200 mg/5mL; Phenylephrine Hydrochloride 5 mg/5mL
Syrup
Kramer NovisOTC MONOGRAPH DRUG

Frequently asked questions

What is Presgen used for?

Uses • helps loosen phlegm (mucus) and thin bronchial secretions to drain bronchial tubes • temporarily relieves these symptoms occurring with a cold: • nasal congestion • cough due to minor throat and bronchial irritation

Who makes Presgen?

Presgen is listed by 1 labeler in the FDA NDC directory, including Kramer Novis.