Why are Vitamins A, E and D measured in IU rather than grams, mg, or mcg?
Some vitamins – specifically A, E and D – are expressed as a unit of biological activity (IU, International Units), rather than as weight such as grams, milligrams or micrograms. Occasionally, it is helpful to know the weight of a nutrient expressed this way.

Here are some of the common conversions:

Vitamin A
1 IU = 0.3 mcg all-trans retinal = 0.3 mcg retinol = 0.344 mcg retinyl acetate = 0.55 mcg retinyl palmitate = 3.6 mcg Beta-Carotene
1 mcg Retinol = 3.34 IU of vitamin A activity
1 mg of all-trans Beta-Carotene = 1667 IU of Vitamin A activity
1 mcg Beta-Carotene = 1.67 IU of Vitamin A activity
1 mcg dietary Beta-Carotene = 0.167 mcg retinal

Retinol Equivalents (RE) = the Vitamin A activity in foods 1 RE = 1 mcg all-trans retinal = 1 mcg retinal = 3.33 IU Retinol 1 RE = 6 mcg all-trans Beta-Carotene = 6 mcg Beta-Carotene 1 RE = 12 mcg other provitamin A carotenoids

Vitamin E
1 IU = 0.67 mg of d-alpha-tocopherol or 0.45 dl-alpha-tocopherol
1 mg = 1.49 IU d-alpha-tocopherol (natural vitamin E; RRR-alpha-tocopherol)
1 mg = 1.10 dl-alpha-tocopherol (synthetic vitamin E; all-rac-alpha-tocopherol)

Vitamin D
1 IU = 0.025 mcg of cholecalciferol (Vitamin D3)
1 mcg Vitamin D (cholecalciferol) = 40 IU

Can Devrom help with bad breath?
Devrom is an FDA approved medication for stool odor and flatulence, it is not designed to help with bad breath. Most bad breath after weight loss surgery is due to ketosis, when your body burns fat as energy.

Will Devrom help with nausea?
Devrom is for the control of stool odor and flatulence. It is not for nausea, vomiting or control of diarrhea.

What is Devrom?
Devrom® is an internal deodorant used to effectively neutralize odor from stool and flatulence. A trusted product for over 40 years and no prescription required, Devrom® is an over-the-counter drug that safely and effectively neutralizes offensive odor. FDA approved Devrom® comes in a chewable tablet form so it is easy to take. The active ingredient is bismuth subgallate.