EHNA
Encyclopedia
EHNA is a phosphodiesterase inhibitor
Phosphodiesterase inhibitor
A phosphodiesterase inhibitor is a drug that blocks one or more of the five subtypes of the enzyme phosphodiesterase , therefore preventing the inactivation of the intracellular second messengers cyclic adenosine monophosphate and cyclic guanosine monophosphate by the respective PDE...

 that selectively inhibits phosphodiesterase type 2 (PDE2).
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