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 214 90
Allergic rhinitis 137 49
Perennial allergy 67 27
Chronic idiopathic hives 22 12
General health 19 4

Show all 79 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 55
None 235

Commonly reported side effects and conditions associated with Cetirizine

Side effect Patients Percentage
Drowsiness 21
Dry mouth 16
Sleepiness 15
Excessive daytime sleepiness (somnolence) 6
Dizziness 4
Fatigue 4

Show all 35 reported side effects

Dosages

Based on patients currently taking Cetirizine

Dosage Patients Percentage
10 mg daily 108
10 mg twice daily 9
10mg as needed 8
20 mg daily 5
5mg as needed 3
10 mg every other day 2
5 mg daily 2
20 mg twice daily 2
1 mg daily 1
5 mg twice daily 1

See all 19 dosages

Why patients stopped taking Cetirizine

Multiple reasons could be selected

Reason Patients Percentage
Did not seem to work 72
Other 44
Doctor's advice 31
Side effects too severe 29
Course of treatment ended 23
Expense 17
Personal research 7
Change in health plan coverage 4
See all 189 patients who've stopped taking Cetirizine

Duration

Currently taking Cetirizine

Duration Patients Percentage
1 - 6 months 3
6 months - 1 year 5
1 - 2 years 15
2 - 5 years 37
5 - 10 years 41
10 years or more 50

Stopped taking Cetirizine

Duration Patients Percentage
Less than 1 month 36
1 - 6 months 33
6 months - 1 year 29
1 - 2 years 34
2 - 5 years 31
5 - 10 years 22
10 years or more 11
Adherence
Adherence Evaluations Percentage
Always 234
Usually 60
Sometimes 23
Never taken as prescribed 10
Burden
Burden Evaluations Percentage
Very hard to take 2
Somewhat hard to take 10
A little hard to take 37
Not at all hard to take 278
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 2
$50-99 1
$25-49 36
< $25 156
Not specified 132

What people switch to and from

Patients started taking Cetirizine after stopping:

Treatment Patients Percentage
Fexofenadine (Allegra) 2

Patients stopped taking Cetirizine and switched to:

Treatment Patients Percentage
Fexofenadine (Allegra) 3
Hydroxyzine (Vistaril) 2
Levocetirizine (Xyzal) 2
Clemastine 1
Desloratadine (Clarinex) 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