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Ergocalciferol and Headaches: What Users Say

Brand names: Vitamin D2, Drisdol, Calciferol, Calcidol

Headaches: mentioned by 4 users (12.5%)

Based on user experiences from 32 Ergocalciferol reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

fatigue 12.5%
headaches 12.5%
rash 9.4%
weakness 9.4%

Reviews for Ergocalciferol

Showing 4 reviews tagged with "headaches". Clear filters to view all 32 reviews.
Commonly mentioned side effects
  • Ram...
  • Taken for 1 to 6 months
  • May 16, 2019

For Vitamin D Deficiency "My doctor prescribed 50,000 i.u. once a week. The first, second, and third week, the headaches were bearable. Today, I thought I would need to call emergency. I never had experienced a headache like the one I suffered 6 hours ago. I am grateful for the changes this medicine has made in my life. My doctor may simply need to adjust the dosage. I only wish that I had been informed of the possible side effects. I am a 75-year-old female."

7 / 10
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  • Sou...
  • October 11, 2016

For Vitamin D Deficiency "I have D deficiency. My doctor prescribed VIT D 50,000 IU D2 (ERGO) caps for me. I took one capsule yesterday afternoon after I got my prescription. I have been having a terrible headache for over a day now. I just realized my headache is caused by the D2 capsule I took. It can be toxic for certain people!!"

1 / 10
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43 Report
  • Kat...
  • Taken for 1 to 6 months
  • October 17, 2019

For Vitamin D Deficiency "I was prescribed 50,000 once weekly for 12 weeks for a severe D deficiency. I had been having headaches, but about 2 weeks into it, I started having SEVERE brain shakes/tremors that were constant. Since I had been having some neuro trouble already, it did not occur to me that the ergocalciferol would be the cause. It was not until I created a timeline (11 weeks in) that I realized the D3 might be the culprit. I stopped taking it, and within 7-8 days, was free from these tremors. I was then put on 5000 units a day, and after about three days, the brain shakes/tremors started again. I stopped taking the D3, and the tremors stopped again. Now I am left with trying to get my D up without D2 or D3 supplements. Arg!"

2 / 10
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27 Report
  • Sha...
  • Taken for less than 1 month
  • January 9, 2021

For Vitamin D Deficiency "My doc prescribed the 50,000 per week vitamin D pill for vitamin D deficiency. I took it 1 time and never took it again. It made me feel terrible! Headache, fatigue, nausea. I just went to bed after I took it that day, so I could sleep off the effects. I've been on 4,000 per day for over 2 years now, and I do just fine with that, but my vitamin D levels are still under the normal range."

1 / 10
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15 Report

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