robitussin dm
Robitussin Dm is a combination medicine containing Dextromethorphan and Guaifenesin.
Dextromethorphan and Guaifenesin
Key facts
- Active ingredient
- Dextromethorphan and Guaifenesin
- Form
- Liquid
- Type
- Over-the-counter (OTC)
- Brand or generic
- Brand-name
Dosage forms
Liquid
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
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Request a 90-day supply
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Use copay cards
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Frequently asked questions
- Is there a coupon or discount for Robitussin Dm?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Robitussin Dm. To pay less, look for a store-brand version with the same active ingredient (Dextromethorphan and Guaifenesin), which is typically cheaper, and compare unit prices. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Is Robitussin Dm a brand-name or generic drug?
- Robitussin Dm is a brand-name product with the active ingredient Dextromethorphan and Guaifenesin.
- Is Robitussin Dm available over the counter?
- Yes. Robitussin Dm is an over-the-counter (OTC) product — you can buy it without a prescription. Follow the label directions and ask a pharmacist if you're unsure whether it's right for you.
- What forms does Robitussin Dm come in?
- Robitussin Dm is currently marketed as liquid, per the FDA's National Drug Code Directory.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about Dextromethorphan and guaifenesin
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 2 reports naming Dextromethorphan and guaifenesin — the active ingredient in Robitussin Dm, and the FDA flagged 100% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- abdominal injury1 reports
- abdominal pain1 reports
- adverse event1 reports
- agitation1 reports
- anxiety1 reports
- atrial fibrillation1 reports
- bipolar disorder1 reports
- blood calcium decreased1 reports
Read these as a signal, not a rate. A report does not mean Dextromethorphan and guaifenesin caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 25, 2026.
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