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Treats cough that is caused by colds, flu, or other conditions. Guaifenesin is an expectorant that loosens mucus in your lungs.

Brand Names

Bidex 400
Refenesen 400
Allfen JR
HealthSense G-Phen 400
Rite Aid Mucus Relief
The Medicine Shoppe Chest Congestion Relief
Organidin NR
Organ-1 NR
GG-200 NR
Quality Choice Medifin

When You Should Not Take The Medication

You should not use this medicine if you have ever had an allergic reaction to guaifenesin.

How To Store And Dispose Of This Medicine

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze the oral liquid.

Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

Keep all medicine away from children and never share your medicine with anyone.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:
Cough that lasts longer than 7 days.
Cough with fever, skin rash, or ongoing headache.

If you notice these less serious side effects, talk with your doctor:
Nausea, vomiting, diarrhea, stomach pain.

If you notice other side effects that you think are caused by this medicine, tell your doctor.