Vitamin D2

(Ergocalciferol)

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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.

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Quick facts about Vitamin D2

Drug class: Musculoskeletal
Rx status: Prescription or OTC
Generic status: Lower-cost generic available (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.

Quick facts about Vitamin D2

Drug class: Musculoskeletal
Rx status: Prescription or OTC
Generic status: Lower-cost generic available (ergocalciferol)

Used for

Dosage forms

Pill
Liquid capsule
Liquid

Raises Vitamin D levels.

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.

Prices and coupons

Side effect rates for Vitamin D2 (Ergocalciferol)

Risks and Warnings for Vitamin D2 (Ergocalciferol)

Common concerns from people taking Vitamin D2 (Ergocalciferol)