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http://empowern.com/
2015/08/bipolar-medication-lithium/
Lithium belongs to the drug class: antimanic agents and it is sold under the US brand names:
Lithobid, Eskalith, Eskalith-CR. More than
5.7 million
American adults or 2.6 percent of the
population age 18 or older in any given year have bipolar disorder. Lithium is helping some of
this American. It has become one of the first and widely used psychiatric drugs for the
treatment of bipolar disorder in the
United States, since its approval in the
1970s. It also has
become one of the most studied psychiatric medications.
Indication:
Lithium is an effective drug for bipolar disorder as its properties help to prevent, as well as
stabilize, manic-depressive mood swings that occur in this psychiatric condition. By controlling
mood disorder, it also reduces the risk of suicide. This is an advantage of lithium that is lacking
in some other drugs. But it is more effective in preventing depression than it is in preventing
mania. However, it needs time to develop and reach its ideal therapeutic level in the body
before it induces any effects. Usually it takes about
1-3 weeks, however, in the case of sudden
or acute bipolar episodes, if lithium hasn’t reached its optimum level in the client’s body, it can
be prescribed along with other medications for effectiveness.
Lithium can also be prescribed for other psychiatric disorders besides bipolar disorder. It can be
useful when other drugs fail in conditions such as schizophrenia, major depression, and certain
psychiatric problems in children.
Mechanism of Action:
Although lithium had been used for more than 50 years in the treatment of bipolar
disorder, its mechanism of action was unknown; until
1998.
Scientists didn’t know the cause of
mood swings in bipolar disorder either. A study made in 1998, by a group of researchers from
Wisconsin University shed light on how lithium works and why it is effective. It was concluded
that lithium acts on certain nerve cells in the brain and the receptors of the neurotransmitter
glutamate. Lithium has a dual effect on these receptors, and using this, it helps to regulate the
level of glutamate between cells, preventing it from reaching too high or too low concentrations.
According to the director of this research, Dr.
Lowell Hokin, who is also a school
professor of pharmacology at Wisconsin University; too little glutamate between neurons cause
depression, while excessive amounts of glutamate cause mania. But it is also believed that
there are more causes and factors involved in these disorders besides the level of glutamate,
but nevertheless, the study has been very helpful as it has uncovered the fundamental causes
of bipolar disorder.
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- published: 24 Aug 2015
- views: 11444