alpha blocking

al·pha block·ing

the attenuation of the occipital alpha rhythm (8-14 Hz brain waves as seen on an electroencephalogram), produced by opening the eyes or by intense mental concentration.
References in periodicals archive ?
Babu, and colleagues from the United Kingdom evaluated the efficacy of Enbrel, a TNF alpha blocking agent in the treatment of patients with severe corticosteroid dependent asthma.
VASOMAX is a novel, immediate-release, oral version of phentolamine mesylate, an established alpha blocking agent.