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Reconstituted solution requires refrigeration at 2-8C and maintains potency for 2-4 weeks
These two amino acids (U and Q) are not highly similar, but are both midrange in size, and polar in nature, because the selenol residue is predominantly ionized at physiological pH
R.WangY
Zhang, W., Xiao, D., Mao, Q
They remain under evaluation
For example, a patient may have a documented clinical need that an FDA-approved product cant meet, such as an allergy to an inactive ingredient or a required dose or formulation that isnt commercially available
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