Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. Hearing loss can be temporary or permanent. Hearing loss related to age usually affects both ears and is due to cochlear hair cell loss. In some people, particularly older people, hearing loss can result in loneliness. Deaf people usually have little to no hearing.Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins. A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy, such as cytomegalovirus, syphilis and rubella, may also cause hearing loss in the child. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear. Testing for poor hearing is recommended for all newborns. Hearing loss can be categorized as mild (25 to 40 dB), moderate (41 to 55 dB), moderate-severe (56 to 70 dB), severe (71 to 90 dB), or profound (greater than 90 dB). There are three main types of hearing loss: conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.About half of hearing loss globally is preventable through public health measures.
Ergot alkaloids, such as dihydroergotamine, add to the drugs hypertensive effect and should be separated by at least 24 hours. Additional chemical names
Merck Index: 3-[[(2R)-1-Methyl-2-pyrrolidinyl]methyl]-5-[2-(phenylsulfonyl)ethyl]-1H-indole
5-[2-(benzenesulfonyl)ethyl]-3-(1-methylpyrrolidin-2(R)-ylmethyl)-1H-indole
(R)-5-[2-(phenylsulfonyl)ethyl]-3-[(1-methyl-2-pyrrolidinyl)methyl]-1H-indole

Society and culture
Brand names
It is sold in the United States, Canada, Australia, and the United Kingdom under the brand name Relpax, and in several other countries under the brand name Relert. References
External links
"Eletriptan". Drug Information Portal. U.S. National Library of Medicine. "Eletriptan hydrobromide". Drug Information Portal. U.S. National Library of Medicine.