Ergocalciferol and Headaches: What Users Say

• 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."

• 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!!"

• 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!"

• 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."