Prescription or OTCLower-cost generic availableClass: Musculoskeletal

Vitamin D2 

(ergocalciferol)

Prescription or OTCLower-cost generic availableClass: Musculoskeletal
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Raises Vitamin D levels.

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Our bottom line

Vitamin D2 (Ergocalciferol) works for vitamin D deficiencies and is available over the counter, but your body doesn't absorb it as well as Vitamin D3.

Price and discounts
Best available price for 4 (1.25mg of 50000iu) capsules of ergocalciferol

Upsides

  • Effective for vitamin D deficiencies.
  • Available in generic and over the counter.
  • This is the plant-based version of vitamin D, so it's useful for vegetarians.
  • Available in oral solution, tablet and capsules.
  • You can take this as a once a day or once a week medication.

Downsides

  • Your body doesn't absorb Vitamin D2 as well as Vitamin D3.
How it works

Vitamin D2 (Ergocalciferol) is a form of Vitamin D. It raises Vitamin D levels in your blood. This in turn raises calcium levels in your blood by helping you absorb more calcium from food in your intestine.

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Side effect rates for Vitamin D2 (ergocalciferol)

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These are side effects of Vitamin D2 (ergocalciferol) reported to the FDA by people taking it, and by doctors and pharmacists.
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Risks and Warnings for Vitamin D2 (ergocalciferol)

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  • People on Vitamin D2 (Ergocalciferol) who take more than the recommended dose can have high calcium in the blood, which can be dangerous in the kidneys. If you notice a metallic taste in your mouth, muscle or joint pain or a bad headache, talk to your doctor. Keep the amount of calcium you eat the same from day to day.

Common concerns from people taking Vitamin D2 (ergocalciferol)

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Pregnancy
Pain
  • Call your doctor if you notice a metallic taste in your mouth, muscle or joint pain, headache or sleepiness.