DM Max 400 mg/20mL (Dextromethorphan HBr, Guaifenesin SOLUTION) 400 mg/20mL

DM Max 400 mg/20mL is a cough suppressant and expectorant solution. It combines dextromethorphan HBr and guaifenesin to help relieve coughs and loosen mucus. Ideal for managing persistent coughs and congestion.

Strength

400 mg/20mL

Pack Size

177 mL in 1 BOTTLE, PLASTIC (0363-8031-45)

Manufacturer / TM Owner

Walgreen Company

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Indications & Clinical Uses

DM Max 400 mg/20mL is primarily used for cough suppression and thinning mucus. Dextromethorphan HBr acts as a cough suppressant, while guaifenesin helps loosen mucus in the airways. This solution is often recommended for individuals experiencing persistent coughs due to colds or respiratory infections. It is designed to provide relief from both dry and productive coughs.

Side Effects

Common effects of DM Max 400 mg/20mL may include reduced coughing and easier mucus expulsion. Users might experience temporary relief from cough symptoms and improved breathing. Some individuals may also notice a decrease in throat irritation and congestion.

Precautions & Warnings

DM Max 400 mg/20mL should be used as directed. It is important to follow the recommended dosage to avoid potential side effects. Individuals with certain medical conditions or those taking other medications should consult a healthcare provider before use. Keep the solution out of reach of children and store it in a cool, dry place.

Avoid Interactions

DM Max 400 mg/20mL may interact with other medications, including those that affect the central nervous system. Alcohol consumption should be avoided while using this solution. It is advisable to inform a healthcare provider about all current medications to prevent potential interactions.

Frequently Asked Questions

DM Max 400 mg/20mL is used to suppress coughs and loosen mucus in the airways. It combines dextromethorphan HBr and guaifenesin for relief from persistent coughs and congestion.

DM Max 400 mg/20mL is an oral solution. It should be taken as directed, typically measured with the provided dosing cup or syringe.

Common side effects may include drowsiness, dizziness, and mild stomach upset. Severe side effects are rare but should be reported to a healthcare provider.

DM Max 400 mg/20mL may interact with other medications, especially those that affect the central nervous system. Consult a healthcare provider before combining with other treatments.

DM Max 400 mg/20mL should be used in children only as directed by a healthcare provider. Always follow the recommended dosage for the specific age group.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated: 29 Jul 2026

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