Hydroxyzine (/haÉªËdrÉksÉ¨ziËn/ ; sold as Vistaril, Atarax) is a first-generation antihistamine of the diphenylmethane and piperazine class.It was first synthesized by Union Chimique Belge in 1956 and was marketed by Pfizer in the United States later the same year, and is still in widespread use today.ydroxyzine (/haÉªËdrÉksÉ¨ziËn/ ; sold as Vistaril, Atarax) is a first-generation antihistamine of the diphenylmethane and piperazine class.
Meningitis can also be caused by the direct spread of a nearby severe infection, such as an ear infection (otitis media) or a nasal sinus infection (sinusitis). An infection can also occur any time following direct trauma to the head or after any type of head surgery.
1 Streptococcus pneumonia is the most common cause of bacterial meningitis in children. 2  It may occur along with an ear or sinus infection or pneumonia. 3  Listeria monocytogenes is a common form of bacteria. 4  It does not tend to infect most people, but the very young and very old, as well as pregnant women, can be at risk.acterial meningitis can cause brain damage, learning disabilities, hearing loss, or even death without treatment for the specific type of bacteria. Rarely, meningitis can be caused by fungal infections (cryptococcus).