Orthostatic Hypotension 1, also known as norepinephrine deficiency, is related to dopamine beta-hydroxylase deficiency and primary orthostatic hypotension, and has symptoms including nasal congestion (finding) An important gene associated with Orthostatic Hypotension 1 is DBH (Dopamine Beta-Hydroxylase). The drugs Droxidopa and Dopamine have been mentioned in the context of this disorder. Affiliated tissues include eye and brain, and related phenotypes are orthostatic hypotension and retrograde ejaculation