Thiethylperazine (Tietilperazina) is an orally available, highly potent D2 receptor and H1 receptor antagonist and selective ABCC1 activator with antimicrobial and antiemetic activity that reduces amyloid beta (Abeta) load in mice, is used to relieve vertigo, and can be used in studies of neurological diseases such as Alzheimers disease and Parkinsons disease. Alzheimers and Parkinsons diseases.