What is Acyclovir?

Category: Prescription Drugs

Most popular types: Zovirax

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Acyclovir is a type of medicine called an antiviral. Antivirals kill viruses or stop viruses from multiplying. Acyclovir is used to treat herpesvirus infections spread by direct skin-to-skin contact. Acyclovir will not cure herpes infections.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Shingles (herpes zoster) 68 83
Cold sores (fever blisters) 50 30
Genital herpes 41 22
Prevent infection 26 13
Herpes outbreak 12 10

Show all 42 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 9
Moderate 11
Mild 24
None 168

Commonly reported side effects and conditions associated with Acyclovir

Side effect Patients Percentage
Diarrhea 4
Headaches 4
Nausea 4
Fatigue 2
Acute renal failure 1
Alopecia 1

Show all 28 reported side effects

Dosages

Based on patients currently taking Acyclovir

Dosage Patients Percentage
800 mg daily 8
400 mg daily 7
400 mg twice daily 7
200 mg twice daily 5
200 mg daily 3
800 mg twice daily 2
400mg as needed 2
1 g three times daily 1
400 mg m,w,f 1
200 mg three times daily 1

See all 14 dosages

Why patients stopped taking Acyclovir

Multiple reasons could be selected

Reason Patients Percentage
Course of treatment ended 65
Doctor's advice 15
Other 13
Did not seem to work 12
Side effects too severe 11
Personal research 4
Expense 2
Change in health plan coverage 1
See all 102 patients who've stopped taking Acyclovir

Duration

Currently taking Acyclovir

Duration Patients Percentage
1 - 6 months 1
1 - 2 years 5
2 - 5 years 8
5 - 10 years 12
10 years or more 15

Stopped taking Acyclovir

Duration Patients Percentage
Less than 1 month 46
1 - 6 months 25
6 months - 1 year 10
1 - 2 years 8
2 - 5 years 5
5 - 10 years 5
10 years or more 3
Adherence
Adherence Evaluations Percentage
Always 175
Usually 27
Sometimes 8
Never taken as prescribed 2
Burden
Burden Evaluations Percentage
Very hard to take 5
Somewhat hard to take 14
A little hard to take 34
Not at all hard to take 159
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 2
$50-99 3
$25-49 12
< $25 92
Not specified 103

What people switch to and from

Patients started taking Acyclovir after stopping:

Treatment Patients Percentage
Valacyclovir (Valtrex) 4
Acyclovir Topical (Zovirax Topical) 2
Famciclovir (Famvir) 1

Patients stopped taking Acyclovir and switched to:

Treatment Patients Percentage
Valacyclovir (Valtrex) 8
Famciclovir (Famvir) 2
Pregabalin (Lyrica) 1
Last updated:

15 patient evaluations for Acyclovir

Apr 15, 2017 (Started Mar 15, 2017)

  • Effectiveness
    None (for chronic Epstein-Barr)
  • Effectiveness
    None (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Side effects
    Mild (stomach discomfort)
  • Adherence
    Usually
  • Burden
    Somewhat hard to take
Dosage: 400 mg Twice daily
Advice & Tips: don't discount it. just didn't work for me personally
Cost: < $25 monthly

Mar 30, 2017 (Started Mar 15, 2017)

  • Effectiveness
    Can't tell (for chronic Epstein-Barr)
  • Effectiveness
    Can't tell (for myalgic encephalomyelitis/chronic fatigue syndrome)
  • Side effects
    Mild (stomach discomfort)
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 400 mg Twice daily
Cost: < $25 monthly

  • 0 helpful marks

Feb 15, 2016 (Started Feb 05, 2016)

  • Effectiveness
    Slight (for shingles (herpes zoster))
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 800 mg Five times daily

  • 0 helpful marks

Oct 1, 2015 (Started Mar 09, 2015)

  • Effectiveness
    Major (for cold sores (fever blisters))
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: As needed
Advice & Tips: taking acyclovir the moment you begin to feel the tingle of a blister, even before it shows, will make it go away and not reach a blister stage.

  • 0 helpful marks
Last updated:
Showing 3 of 15 patient evaluations for Acyclovir