Reversible inhibitor of voltage-gated sodium channels (Nav). Delays the fast inactivation kinetics of neuronal-type sodium channels. In vivo, it induces rat penile erection. This effect may be due to the neuronal nitric oxide synthase (NOS1), since one of its selective inhibitor completely abolishes all the toxic effects of the toxin. This toxin also causes scratching, lacrimation, hypersalivation, sweating and agitation followed by spastic paralysis of the anterior and posterior extremities and death at dose levels of 0.24 mg/mouse. It is also insecticidal to the larval and adult forms of the house fly