Inhalation

Systemic effect - general anesthesia

Rapid absorption, by-passing the liver

Absorption of gases is relatively efficient, however solids and liquids are excluded if larger than 20 micron and even then only 10 % of the dose may be absorbed. Cromolyn is taken as a powder with 50 % of the particles within the range of 2 to 6 micron. Larger than 20 micron and the particles impact in the mouth and throat. Smaller than 0.5 micron and they aren't retained.

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Copyright 2001-3 David W. A. Bourne (david@boomer.org)