The most commonly used sclerosants are ethanolamine and sodium
tetradecyl sulfate
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Sodium tetradecyl sulfate is the only FDA approved sclerosant.
Sometimes hypertonic saline may be used however hypertonic saline
is not FDA approved for sclerotherapy.
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Sodium Sulfate
Na has a charge of 1+ and Sulfate (SO4) has a charge of 3-
So, in order for them to bond, you need to have 3 Sodium atoms
for every 1 Sulfate molecules.