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What is Vitamin D?

Vitamin D is a fat-soluble vitamin that was isolated in 1930 and named calciferol. Since then more metabolites have been found and the two major forms of this vitamin are now known to be vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol).

Reported Purpose & Efficacy

Reasons and Efficacy
Purpose # of patients
# of patients with evaluations Efficacy
Major
Moderate
Slight
None
Can’t tell
Vitamin D deficiency 739 116 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
General health 612 77 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
MS (Multiple Sclerosis) 462 59 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
Other 135 14 Efficacy_major Efficacy_moderate Efficacy_cant_tell
Fatigue 108 18 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell
Fibromyalgia 105 15 Efficacy_moderate Efficacy_slight Efficacy_none Efficacy_cant_tell

See all 2924 patients currently taking Vitamin D

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Reported Side Effects

Side effects as an overall problem

Severe
 7
Moderate
 5
Mild
 8
None
 300

Commonly reported side effects, conditions, and hospitalizations associated with Vitamin D

Nausea 2
Dizziness 1
Diarrhea 1
Dry mouth (xerostomia) 1
Elevated liver enzymes 1
Muscle pain 1
See all 18 reported side effects ▼ See top 6 reported side effects ▲

Reported Dosages

Frequently reported dosages based on patients currently taking Vitamin D. See all 285 dosages ►

  daily 400 intl units daily 1,000 intl units daily 1,000 mg daily 2,000 intl units daily 2,000 mg daily 4,000 intl units daily 5,000 intl units daily 50,000 intl units weekly 50,000 intl units weekly
  71 Number of Patients: 71 167 Number of Patients: 167 467 Number of Patients: 467 96 Number of Patients: 96 393 Number of Patients: 393 62 Number of Patients: 62 155 Number of Patients: 155 172 Number of Patients: 172 63 Number of Patients: 63 113 Number of Patients: 113  

Reported Stop Reasons

Why Patients Stopped Taking Vitamin D (multiple reasons could be selected)
Reason # Patients Percentage of patients
Other 63   Other: 36%
Course of treatment ended 36   Course of treatment ended: 21%
Doctor's advice 27   Doctor's advice: 16%
Did not seem to work 24   Did not seem to work: 14%
Expense 14   Expense: 8%
Side effects too severe 12   Side effects too severe: 7%
Personal research 7   Personal research: 4%
Not indicated 7   Not indicated: 4%
Change in health plan coverage 1   Change in health plan coverage: 1%

See all 166 patients who’ve stopped taking Vitamin D

Reported Duration See details about how long patients take this treatment ▼

Currently Taking Vitamin D

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 D

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 D

Always
 228 71%
Usually
 70 22%
Sometimes
 15 5%
Never
 7 2%

Burden

Difficulty being on treatment

Burden of Vitamin D

Very
 3 1%
Somewhat
 12 4%
A little
 29 9%
Not at all
 276 86%

Cost

Paid out of pocket

Cost of Vitamin D

$200+
 1 1%
$100-199
 0 0%
$50-99
 1 1%
$25-49
 5 3%
< $25
 175 96%

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

Report created on May 26, 2012.