What is Cetirizine?

Category: Over the Counter Drugs

Most popular types: Zyrtec Members Mark Cetirizine Wal-Zyr Show all

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See also: Zyrtec-D

Cetirizine HCl is an antihistamine used for the relief of indoor and outdoor allergy symptoms. It also treats itching due to chronic hives.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Seasonal allergy 619 94
Allergic rhinitis 335 48
Perennial allergy 198 28
Chronic idiopathic hives 124 12
Idiopathic angioedema 115 11

Show all 99 reasons taken


  • 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 16
Moderate 21
Mild 57
None 249

Commonly reported side effects and conditions associated with Cetirizine

Side effect Patients Percentage
Drowsiness 22
Dry mouth 15
Sleepiness 15
Excessive daytime sleepiness (somnolence) 6
Fatigue 4
Dizziness 3

Show all 37 reported side effects

Dosages

Based on patients currently taking Cetirizine

Dosage Patients Percentage
10 mg daily 53
10 mg twice daily 5
20 mg twice daily 3
5mg as needed 3
10mg as needed 2
1 mg daily 1
5 mg daily 1
20 mg daily 1
10 mg four times daily 1
50 mg daily 1

See all 11 dosages

Why patients stopped taking Cetirizine

Multiple reasons could be selected

Reason Patients Percentage
Did not seem to work 82
Other 49
Doctor's advice 32
Side effects too severe 29
Course of treatment ended 25
Expense 17
Personal research 7
Change in health plan coverage 5
See all 205 patients who've stopped taking Cetirizine

Duration

Currently taking Cetirizine

Duration Patients Percentage
1 - 6 months 3
6 months - 1 year 1
1 - 2 years 5
2 - 5 years 19
5 - 10 years 21
10 years or more 24

Stopped taking Cetirizine

Duration Patients Percentage
Less than 1 month 37
1 - 6 months 33
6 months - 1 year 28
1 - 2 years 33
2 - 5 years 33
5 - 10 years 23
10 years or more 13
Adherence
Adherence Evaluations Percentage
Always 246
Usually 61
Sometimes 26
Never taken as prescribed 10
Burden
Burden Evaluations Percentage
Very hard to take 3
Somewhat hard to take 10
A little hard to take 39
Not at all hard to take 291
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 2
$50-99 1
$25-49 38
< $25 161
Not specified 141

What people switch to and from

Patients started taking Cetirizine after stopping:

Treatment Patients Percentage
Fexofenadine (Allegra) 2
Lamotrigine (Lamictal) 1

Patients stopped taking Cetirizine and switched to:

Treatment Patients Percentage
Fexofenadine (Allegra) 5
Levocetirizine (Xyzal) 5
Hydroxyzine (Vistaril) 3
Montelukast (Singulair) 3
Clemastine (Tavist Allergy/Sinus/Headache) 1

Show all 6 treatments patients report switching to

Last updated:

29 patient evaluations for Cetirizine

Jun 2, 2019 (Started Jul 01, 2019)

  • Effectiveness
    Major (for seasonal allergy)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: As needed
Advice & Tips: A game changer. Wish I had found out earlier.
Cost: < $25 monthly

  • 0 helpful marks

Mar 26, 2018 (Started Jul 01, 2013)

  • Effectiveness
    Moderate (for seasonal allergy)
  • Side effects
    None
  • Adherence
    Sometimes
  • Burden
    Not at all hard to take
Dosage: 10 mg Daily
Cost: < $25 monthly

Nov 19, 2014 (Started Jul 01, 2013)

  • Effectiveness
    Major (for seasonal allergy)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 10 mg Daily

  • 0 helpful marks

Aug 7, 2016 (Started Jul 07, 2012)

  • Effectiveness
    None (for acid reflux)
  • Effectiveness
    Moderate (for allergies)
  • Side effects
    None
  • Adherence
    Sometimes
  • Burden
    Not at all hard to take
Dosage: As needed

  • 0 helpful marks
Last updated:
Showing 3 of 29 patient evaluations for Cetirizine