DrugDashboards

Market view

guaifenesin 400mg and dextromethorphan hbr 20mg · Tablet

2 marketed package NDCs · 2 active manufacturers

The short version

Just 2 companies supply this market — thin enough that a single exit would be felt immediately.

What changed in the last 90 days

Every detected change for guaifenesin 400mg and dextromethorphan hbr 20mg, newest first — price moves, shortages, recalls, and manufacturers entering or leaving. Detected by comparing each day’s federal data against the day before.

  • Pharbinex-DMSep 2, 2026
    Mfr exited
    Ulai Health LLC · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DmSep 2, 2026
    Mfr exited
    Pharbest Pharmaceuticals, Inc. · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DMAug 26, 2026
    Mfr entered
    Ulai Health LLC · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DmAug 26, 2026
    Mfr entered
    Pharbest Pharmaceuticals, Inc. · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DMJul 29, 2026
    Mfr exited
    Ulai Health LLC · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DmJul 29, 2026
    Mfr exited
    Pharbest Pharmaceuticals, Inc. · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DMJul 22, 2026
    Mfr entered
    Ulai Health LLC · guaifenesin 400mg and dextromethorphan hbr 20mg
  • Pharbinex-DmJul 22, 2026
    Mfr entered
    Pharbest Pharmaceuticals, Inc. · guaifenesin 400mg and dextromethorphan hbr 20mg

Same drug class

Other molecules FDA puts in Uncompetitive N-methyl-D-aspartate Receptor Antagonist, with whether each is in shortage right now. Same class is not the same drug — substitution is a clinical decision, and this is a supply picture, not a recommendation.

Common questions

Is Guaifenesin 400mg and dextromethorphan hbr 20mg in shortage right now?
No. FDA does not currently list Guaifenesin 400mg and dextromethorphan hbr 20mg in shortage. This page is rebuilt every morning from FDA's shortage database, so a new posting appears here the day it is published.
Who makes Guaifenesin 400mg and dextromethorphan hbr 20mg?
2 companies have marketed Guaifenesin 400mg and dextromethorphan hbr 20mg in the last 30 days, according to the FDA NDC Directory. That is a thin market — if one stops making it, supply is at risk quickly. Every manufacturer and package is listed on this page.

All marketed products

Expand a strength to see its dosage forms, then package sizes, then each manufacturer and NDC. Click an NDC for its full detail page.