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What is Vitamin C (ascorbic acid)?

Vitamin C (ascorbic acid) is a water soluble vitamin used to prevent and treat scurvy and acidify urine. Off label it is used to decrease severity of colds and as a dietary supplement.

Reported Purpose & Efficacy

Reasons and Efficacy
Purpose # of patients
# of patients with evaluations Efficacy
Major
Moderate
Slight
None
Can’t tell
General health 685 61 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
ALS (Amyotrophic Lateral Sclerosis) 159 17 Efficacy_moderate Efficacy_none Efficacy_cant_tell
Support immune health 60 7 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
Other 45 6 Efficacy_major Efficacy_moderate Efficacy_cant_tell
Fatigue 28 5 Efficacy_moderate Efficacy_none Efficacy_cant_tell
MS (Multiple Sclerosis) 27 2 Efficacy_cant_tell

See all 1179 patients currently taking Vitamin C (ascorbic acid)

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Reported Side Effects

Side effects as an overall problem

Severe
3
Moderate
2
Mild
8
None
108

Commonly reported side effects, conditions, and hospitalizations associated with Vitamin C (ascorbic acid)

Stomach upset 2
Nausea 1
Acid reflux 1
Diarrhea 1
Burning sensation in tongue 1
Nausea and vomiting 1
See all 11 reported side effects See top 6 reported side effects

Reported Dosages

Frequently reported dosages based on patients currently taking Vitamin C (ascorbic acid). See all 97 dosages

  daily 100 mg daily 250 mg daily 500 mg daily 1,000 mg daily 1,000 daily 1,500 mg daily 2,000 mg daily 3,000 mg daily 4,000 mg daily
  59 Number of Patients: 59 25 Number of Patients: 25 17 Number of Patients: 17 348 Number of Patients: 348 412 Number of Patients: 412 20 Number of Patients: 20 21 Number of Patients: 21 123 Number of Patients: 123 58 Number of Patients: 58 15 Number of Patients: 15  

Reported Stop Reasons

Why Patients Stopped Taking Vitamin C (ascorbic acid) (multiple reasons could be selected)
Reason # Patients Percentage of patients
Other 83   Other: 50%
Did not seem to work 40   Did not seem to work: 24%
Expense 12   Expense: 7%
Personal research 11   Personal research: 7%
Doctor's advice 10   Doctor's advice: 6%
Course of treatment ended 8   Course of treatment ended: 5%
Not indicated 7   Not indicated: 4%
Side effects too severe 7   Side effects too severe: 4%
Change in health plan coverage 3   Change in health plan coverage: 2%

See all 162 patients who’ve stopped taking Vitamin C (ascorbic acid)

Currently Taking Vitamin C (ascorbic acid)

A bar graph

0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more

Stopped Taking Vitamin C (ascorbic acid)

A bar graph

0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more

Reported Adherence, Burden & Cost See details from patient evaluations

Adherence

Taking treatment as prescribed

Adherence of Vitamin C (ascorbic acid)

Always
71 59%
Usually
32 26%
Sometimes
11 9%
Never
7 6%

Burden

Difficulty being on treatment

Burden of Vitamin C (ascorbic acid)

Very
2 2%
Somewhat
4 3%
A little
16 13%
Not at all
99 82%

Cost

Paid out of pocket

Cost of Vitamin C (ascorbic acid)

$200+
0 0%
$100-199
0 0%
$50-99
0 0%
$25-49
2 3%
< $25
59 97%

See more information, including instructions, precautions, side effects, and interactions.

Report created on May 24, 2012.