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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 669 57 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
ALS (Amyotrophic Lateral Sclerosis) 154 15 Efficacy_moderate Efficacy_none Efficacy_cant_tell
Support immune health 61 6 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
Other 46 7 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_cant_tell
Fatigue 28 5 Efficacy_moderate Efficacy_none Efficacy_cant_tell
MS (Multiple Sclerosis) 27 2 Efficacy_cant_tell

See all 1154 patients currently taking Vitamin C (ascorbic acid)

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Reported Side Effects

Side effects as an overall problem

Severe
2
Moderate
2
Mild
6
None
103

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

Stomach upset 2
Nausea 1
Burning sensation in tongue 1
Nausea and vomiting 1
Bowel Irregularity 1
Gastric Ulcer 1
See all 8 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 98 dosages

  daily 100 mg daily 250 mg daily 500 mg daily 1,000 daily 1,000 mg daily 1,500 mg daily 2,000 mg daily 3,000 mg daily 4,000 mg daily
  59 Number of Patients: 59 24 Number of Patients: 24 16 Number of Patients: 16 334 Number of Patients: 334 20 Number of Patients: 20 398 Number of Patients: 398 21 Number of Patients: 21 123 Number of Patients: 123 60 Number of Patients: 60 16 Number of Patients: 16  

Reported Stop Reasons

Why Patients Stopped Taking Vitamin C (ascorbic acid) (multiple reasons could be selected)
Reason # Patients Percentage of patients
Other 80   Other: 51%
Did not seem to work 37   Did not seem to work: 23%
Expense 12   Expense: 8%
Personal research 11   Personal research: 7%
Doctor's advice 9   Doctor's advice: 6%
Not indicated 7   Not indicated: 4%
Course of treatment ended 6   Course of treatment ended: 4%
Side effects too severe 5   Side effects too severe: 3%
Change in health plan coverage 3   Change in health plan coverage: 2%

See all 154 patients who’ve stopped taking Vitamin C (ascorbic acid)

Currently Taking Vitamin C (ascorbic acid)

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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
67 59%
Usually
28 25%
Sometimes
10 9%
Never
8 7%

Burden

Difficulty being on treatment

Burden of Vitamin C (ascorbic acid)

Very
2 2%
Somewhat
4 4%
A little
13 12%
Not at all
94 83%

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
56 97%

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

Report created on February 11, 2012.