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DM Tannate-Guaifenesin Oral

In Depth

Generic Name: GUAIFENESIN/DEXTROMETHORPHAN SUSPENSION SR - ORAL
Pronounced: (gweye-FEN-eh-sin/dex-trow-meth-OR-fan poly-STYE-ricks)

DM Tannate-Guaifenesin Oral Side Effects

Headache, dizziness, drowsiness, loss of appetite, nausea or vomiting may occur the first several days as your body adjusts to this medication. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including:

  • rash
  • itching
  • swelling
  • severe dizziness
  • trouble breathing


This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

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