Psychogenic amnesia or dissociative amnesia is a  memory disorder characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years to decades. More recently, "dissociative amnesia" has been defined as a dissociative disorder "characterized by retrospectively reported memory gaps. These gaps involve an inability to recall personal information, usually of a traumatic or stressful nature." In a change from the DSM-IV to the DSM-5, dissociative fugue is now  subsumed under dissociative amnesia.The atypical clinical syndrome of the memory disorder (as opposed to organic amnesia) is that a person with psychogenic amnesia is profoundly unable to remember personal information about themselves; there is a lack of conscious self-knowledge which affects even simple self-knowledge, such as who they are. Psychogenic amnesia is distinguished from organic amnesia in that it is supposed to result from a nonorganic cause: no structural brain damage or brain lesion should be evident but some form of psychological stress should precipitate the amnesia, however psychogenic amnesia as a memory disorder is controversial. Definition
Psychogenic amnesia is the presence of retrograde amnesia (the inability to retrieve stored memories leading up to the onset of amnesia), and an absence of anterograde amnesia (the inability to form new long term memories). Access to episodic memory can be impeded, while the degree of impairment to short term memory, semantic memory and procedural memory is thought to vary among cases.
Rifampicin/isoniazid/pyrazinamide, also known as rifampin/isoniazid/pyrazinamide, and sold under the trade name Rifater, is a medication used to treat tuberculosis. It is a fixed dose combination of rifampicin, isoniazid, and pyrazinamide. It is used either by itself or along with other antituberculosis medication. It is taken by mouth.Side effects are those of the underlying medications. These may include poor coordination, loss of appetite, nausea, joint pain, feeling tired, and numbness. Severe side effects include liver problems. Use in those under the age of 15 may not be appropriate. It is unclear if use in pregnancy is safe for the baby.Rifampicin/isoniazid/pyrazinamide was approved for medical use in the United States in 1994. It is on the World Health Organizations List of Essential Medicines. Medical uses
The hope of a fixed-dose combination pill is to increase the likelihood that people will take all of three medications. Also, if people forget to take one or two of their drugs, they might not then develop resistance to the remaining drugs. Society and culture
It is manufactured by Aventis. See also
Tuberculosis treatment
Rifampicin + isoniazid + ethambutol


== References ==