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Treats stuffy nose and chest congestion caused by hay fever, colds, sinus problems, or flu.

Brand Names

Guaifenex PSE 80
Guaifenex PSE 60
Guaifenex PSE 120
Ami-Tex LA
New Ami-Tex LA
Entex PSE
Crantex LA
Pseudovent 400
GFN 1200/Phenylephrine 40
GFN 800/PE 25
Levall G
Pseudovent Ped
Duraphen II
Prolex PD
PhenaVent LA

When You Should Not Take The Medication

You should not use this medicine if you have ever had an allergic reaction to any decongestant or cough medicine. You should not use this medicine if you have taken an MAO inhibitor such as Nardil®, Marplan®, Eldepryl®, or Parnate® within the past 14 days.

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.

Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.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:
Fast, pounding, or irregular heartbeat
Severe headache
Trouble breathing
Skin rash, hives, or itching

If you notice these less serious side effects, talk with your doctor:
Stomach upset
Trouble sleeping

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