Question: Please provide a description of this drug's mechanism of action.
Description: The Chemical has the SMILES Cl.NC1=NCC2c3ccccc3Cc3ccccc3N12.
Result: Histamine H1 receptor antagonist
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
Cl.NC1=NCC2c3ccccc3Cc3ccccc3N12
Cl.NC1=NCC2c3ccccc3Cc3ccccc3N12
2,4-diazatetracyclo[12.4.0.02,6.07,12]octadeca-1(18),3,7,9,11,14,16-heptaen-3-amine;hydrochloride
Please provide a description of this drug's mechanism of action.
Histamine H1 receptor antagonist