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GENERIC
NAME: sertraline
BRAND NAME:
Zoloft
DRUG CLASS AND MECHANISM:
Sertraline belongs to a class of drugs called
selective serotonin reuptake inhibitors (SSRI).
Other drugs in this class are Prozac
(fluoxetine), Paxil (paroxetine), Celexa
(citalopram) and Luvox (fluvoxamine). Serotonin
is a neurotransmitter (a chemical messenger)
produced by nerve cells in the brain that is
used by the nerves to communicate with one
another. A nerve releases the serotonin it
produces into the space surrounding it. The
serotonin either travels across the space and
attaches to receptors on the surface of nearby
nerves or it attaches to receptors on the
surface of the nerve that produced it, to be
taken up by the nerve and released again (a
process referred to as re-uptake). A balance is
reached for serotonin between attachment to the
nearby nerves and reuptake. Selective serotonin
inhibitors block the reuptake of serotonin and
therefore change the level of serotonin in the
brain. It is believed that some illnesses such
as depression are caused by disturbances in the
balance between serotonin and other
neurotransmitters. The leading theory is that
drugs such as sertraline restore the chemical
balance among neurotransmitters in the brain.
Sertraline was approved by the Food and Drug
Administration in December,
1991.
PRESCRIPTION:
Yes
GENERIC AVAILABLE:
No
PREPARATIONS: Tablets: 25,
50, and 100 mg; oral concentrate: 20
mg/ml
STORAGE: Store at room
temperature between 15-30°C
(59-86°F).
PRESCRIBED FOR: Sertraline
is a drug that is used to treat depression,
obsessive-compulsive disorder, panic disorder,
and post-traumatic stress disorder. Like other
SSRIs, sertraline also is used for treating
social anxiety disorder and postmenstrual
dysphoric disorder.
DOSING: The recommended
dose of sertraline is 25-200 mg once daily.
Treatment usually is started at 25-50 once daily
and then increased at weekly intervals until the
desired response is seen. Sertraline may be
taken with or without food.
DRUG INTERACTIONS: Serious
reactions such as hyperthermia, fluctuations in
blood pressure and rigidity of muscles may occur
when SSRIs are used in combination with
monoamine oxidase inhibitors (MAOI) such as
phenelzine, tranylcypromine (Parnate) and
isocarboxazid. Therefore, SSRIs should not be
used in combination with MAOIs. In addition,
SSRIs and MAOIs should not be used within 14
days of each other.
Cimetidine
may increase the levels in blood of sertraline
by reducing the elimination of sertraline by the
liver. Increased levels of sertraline may lead
to more side effects.
Sertraline
increases the blood level of pimozide (Orap) by
40%. High levels of pimozide can affect
electrical conduction in the heart and lead to
sudden death. Therefore, patients should not
receive treatment with both pimozide and
sertraline.
Through
unknown mechanisms, sertraline may increase the
blood thinning action of warfarin. The effect of
warfarin should be monitored when sertraline is
started or stopped.
PREGNANCY: Sertraline's
safety in pregnancy has not been
established.
NURSING MOTHERS: Use of
sertraline by nursing mothers has not been
adequately evaluated.
SIDE EFFECTS: The most
common side effects of sertraline are
sleepiness, nervousness, insomnia, dizziness,
nausea, tremor, skin rash, upset stomach, loss
of appetite, headache, diarrhea, abnormal
ejaculation, dry mouth and weight loss.
Important side effects are irregular heartbeats,
allergic reactions and activation of mania in
patients with bipolar
disorder.
If
sertraline is discontinued abruptly, some
patients experience symptoms such as abdominal
cramps, flu like symptoms, fatigue and memory
impairment. Although this reaction is not well
established, it is reasonable to gradually
reduce the dose when therapy is
discontinued.
It has been
suggested that SSRIs may cause depression to
worsen and even lead to suicide in a small
number of patients. These potential side effects
are difficult to evaluate in depressed patients
because depression can progress with or without
treatment, and suicide is itself a consequence
of depression. Moreover, the evidence supporting
these potential side effects is weak. Therefore,
no conclusions can yet be drawn about the
relationship between SSRIs and worsening
depression and suicide. Until better information
is available, patients receiving SSRIs should be
monitored for worsening depression and suicidal
tendencies.
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