Muscarinic Antagonists Free of Hallucinogenic Properties.
Abstract
QNB (3-quinuclidinyl benzilate), a potent anti-muscarinic agent possessing strong central stimulatory/hallucinogenic properties, and two analogues, QNX (3-quinuclidinyl xanthene-9-carboxylate) and QNA (3-quinuclidinyl atrolactate) synthesized in our laboratory, were evaluated in the rat for their central effects on behavior. In the pilocarpine test, QNB gave a smooth dose-response curve with maximum interference of pilocarpine-induced catatonia at 5mg/Kg. The inhibition decreased in a dose-dependent manner to control levels of catatonia at 0.01 mg/Kg. QNX and QNA gave responses markedly different from QNB. QNB, QNX and QNA were all potent stimulators of the limb flick response in rats. All three compounds, in their racemic forms have equal potency to produce limb flick at a level which compares to that seen after administration of LSD. The results may indicate a greater bioavailability of QNA of QNA when compared to QNB and QNX since the results obtained with QNA are remarkably similar to those seen with QNX in both paradigms and QNB in the limb flick response.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA166678
Entities
People
- L. A. Rothblat
- L. J. Grimm
- W. J. Rzeszotarski
Organizations
- George Washington University