Dyphylline / Guaifenesin Dosage

Medically reviewed by Drugs.com. Last updated on Aug 3, 2023.

Applies to the following strengths: 200 mg-200 mg; 100 mg-100 mg/15 mL; 300 mg-300 mg/15 mL; 200 mg-100 mg; 100 mg-50 mg/5 mL; 200 mg-400 mg; 100 mg-100 mg/5 mL; 200 mg-300 mg; 100 mg-200 mg/5 mL

Usual Adult Dose for:

Asthma
Bronchitis

Usual Adult Dose for Asthma

1 tablet orally three to four times daily

In severe cases, the dosage may be doubled as needed.
Adjust dose based on patient response.

Use(s): As a bronchodilator expectorant for treating bronchial asthma and for reversible bronchospasm associated with chronic bronchitis and emphysema.

Usual Adult Dose for Bronchitis

1 tablet orally three to four times daily

In severe cases, the dosage may be doubled as needed.
Adjust dose based on patient response.

Use(s): As a bronchodilator expectorant for treating bronchial asthma and for reversible bronchospasm associated with chronic bronchitis and emphysema.

Renal Dose Adjustments

Data not available

Renal clearance is reduced in patients with impaired renal function.

Liver Dose Adjustments

Data not available

Precautions

CONTRAINDICATIONS:

Hypersensitivity to any of the ingredients or related compounds
Use is not indicated in status asthmaticus, which is a serious medical emergency
Although the relationship of plasma dyphylline levels and toxicity is unknown, excessive doses may be expected to increase the risk of adverse effects

Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.