What is Guaifenesin-phenylephrine?

Category: Prescription Drugs

Most popular types: Entex LA Pendex


Guaifenesin and phenylephrine is the combination of a decongestant and expectorant. It is used to relieve nasal congestion, sinusitis, rhinitis, and hay fever; temporary relief of cough associated with upper respiratory tract conditions, especially when associated with dry, nonproductive cough.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Allergic rhinitis 1 0
Bronchitis 1 0
General health 1 0
Nasal congestion 1 0
Runny nose (rhinorrhea) 1 1

  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations Percentage
Severe 0
Moderate 0
Mild 0
None 1

Commonly reported side effects and conditions associated with Guaifenesin-phenylephrine

Side effect Patients Percentage
Adherence Evaluations Percentage
Always 0
Usually 0
Sometimes 1
Never taken as prescribed 0
Burden Evaluations Percentage
Very hard to take 0
Somewhat hard to take 0
A little hard to take 0
Not at all hard to take 1
Last updated:
There are no evaluations for Guaifenesin-phenylephrine.