selective serotonin reuptake inhibitor

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inhibitor

 [in-hib´ĭ-tor]
1. any substance that interferes with a chemical reaction, growth, or other biologic activity.
2. a chemical substance that inhibits or checks the action of a tissue organizer or the growth of microorganisms.
3. an effector that reduces the catalytic activity of an enzyme.
ACE i's (angiotensin-converting enzyme i's) see angiotensin-converting enzyme inhibitors.
angiogenesis inhibitor a group of drugs that prevent growth of new blood vessels into a solid tumor.
aromatase i's a class of drugs that inhibit aromatase activity and thus block production of estrogens; used to treat breast cancer and endometriosis.
C1 inhibitor (C1 INH) a member of the serpin group, an inhibitor of C1, the initial component activated in the classical complement pathway. Deficiency of or defect in the protein causes hereditary angioedema.
carbonic anhydrase inhibitor an agent that inhibits the enzyme carbonic anhydrase; used in treatment of glaucoma and sometimes for epilepsy, familial periodic paralysis, acute mountain sickness, and kidney stones of uric acid.
cholinesterase inhibitor anticholinesterase.
COX-2 i's (cyclooxygenase-2 i's) a group of nonsteroidal antiinflammatory drugs that act by inhibiting cyclooxygenase-2 activity; they have fewer gastrointestinal side effects than other NSAIDs. Two members of the group are celecoxib and rofecoxib.
gastric acid pump inhibitor an agent that inhibits gastric acid secretion by blocking the action of H+,K+-ATPase at the secretory surface of gastric parietal cells; called also proton pump i.
HIV protease inhibitor any of a group of antiretroviral drugs active against the human immunodeficiency virus; they prevent protease-mediated cleavage of viral polyproteins, causing production of immature viral particles that are noninfective. Examples include indinavir sulfate, nelfinavir mesylate, ritonavir, and saquinavir.
HMG-CoA reductase i's a group of drugs that competitively inhibit the enzyme that catalyzes the rate-limiting step in cholesterol biosynthesis, and are used to lower plasma lipoprotein levels in the treatment of hyperlipoproteinemia. Called also statins.
membrane inhibitor of reactive lysis (MIRL) protectin.
monoamine oxidase inhibitor any of a group of drugs that inhibit the action of monoamine oxidase, the enzyme that breaks down norepinephrine and serotonin, prescribed for their antidepressant action; the most widely used ones are isocarboxazid, phenelzine, and tranylcypromine. They are also used in the prevention of migraine.
α2-plasmin inhibitor α2-antiplasmin.
plasminogen activator inhibitor (PAI) any of several regulators of the fibrinolytic system that act by binding to and inhibiting free plasminogen activator. Their concentration in plasma is normally low, but is altered in some disturbances of bodily hemostasis. PAI-1 is an important fast-reacting inhibitor of t-plasminogen activator and u-plasminogen activator. Its synthesis, activity, and release are highly regulated; elevated levels of it have been described in a number of disease states. PAI-2 is a normally minor inhibitor that greatly increases in concentration during pregnancy and in certain disorders. PAI-3 is protein C inhibitor.
platelet inhibitor any of a group of agents that inhibit the clotting activity of platelets; the most common ones are aspirin and dipyridamole. See also antiplatelet therapy.
protease inhibitor
1. a substance that blocks activity of endopeptidase (protease), such as in a virus.
protein C inhibitor the primary inhibitor of activated anticoagulant protein C; it is a glycoprotein of the serpin family of proteinase inhibitors and also inhibits several other proteins involved in coagulation (thrombin, kallikrein, and coagulation factors X and XI) and urokinase. Called also plasminogen activator inhibitor 3.
proton pump inhibitor gastric acid pump i.
reverse transcriptase inhibitor a substance that blocks activity of the reverse transcriptase of a retrovirus and is used as an antiretroviral agent. Some are nucleosides or nucleoside analogues, and those that are not are therefore often called non-nucleoside reverse transcriptase inhibitors.
selective serotonin reuptake inhibitor (SSRI) any of a group of drugs that inhibit the inactivation of serotonin by blocking its absorption in the central nervous system; used as antidepressants and in the treatment of obsessive-compulsive disorder and panic disorder.
serine protease inhibitor (serine proteinase inhibitor) serpin.
topoisomerase i's a class of antineoplastic agents that interfere with the arrangement of DNA in cells.

selective serotonin reuptake inhibitor

a class of chemical compounds that selectively, to varying degrees, inhibit the reuptake of serotonin by presynaptic neurons and are posited to exert their antidepressant effect by this mechanism.

selective serotonin reuptake inhibitor

n.
An SSRI.

selective serotonin reuptake inhibitor (SSRI)

an antidepressant drug that blocks reuptake of serotonin without blocking reuptake of other biogenic amines such as norepinephrine and dopamine. Advantages over tricyclic antidepressant drugs include fewer anticholinergic side effects (dry mouth, blurred vision, urinary retention) and fewer antihistaminic side effects (sedation, weight gain).

selective serotonin reuptake inhibitor

Serotonin-selective-reuptake inhibitor, see there.

se·lec·tive ser·o·to·nin re·up·take in·hib·i·tor

(SSRI) (sĕ-lek'tiv ser'ŏ-tō'nin rē-ŭp'tāk in-hib'i-tŏr)
A class of drugs that selectively prevent the reuptake of serotonin and are used for the treatment of depression, e.g., fluoxetine, sertraline.

Selective serotonin reuptake inhibitor (SSRI)

A class of antidepressants that work by blocking the reabsorption of serotonin in the brain, raising the levels of serotonin. SSRIs include Prozac, Zoloft, and Paxil.

se·lec·tive ser·o·to·nin re·up·take in·hib·i·tor

(SSRI) (sĕ-lek'tiv ser'ŏ-tō'nin rē-up'tāk in-hib'i-tŏr)
Class of chemical compounds that selectively, to varying degrees, inhibit reuptake of serotonin by presynaptic neurons and are posited to exert their antidepressant effect by this mechanism.
References in periodicals archive ?
First-trimester use of selective serotonin reuptake inhibitors and the risk of birth defects.
Selective serotonin reuptake inhibitors (SSRIs) are considered less toxic and have rarely been implicated in the induction of rhabdomyolysis.
But on follow-up evaluation, the drug-treated patients were significantly less depressed than were 41 similar patients with rheumatoid arthritis who had not received a selective serotonin reuptake inhibitor.
The adverse effects of selective serotonin reuptake inhibitors (SSRIs) on sexual function are well documented and are thought to be mediated through serotonin receptors, although the mechanisms are not yet understood, said Dr.
A Food and Drug Administration advisory panel supported the addition of information to the professional label and patient package insert of serotonin reuptake inhibitors concerning neonatal withdrawal syndrome and toxicity reports in newborns exposed to the drugs during the third trimester.
Results from a randomized, controlled study of 116 poststroke patients in Sweden showed that treatment with the selective serotonin reuptake inhibitor (SSRI) sertraline significantly reduced emotionalism and improved quality of life, although the drug had no significant effect on post-stroke depression, Dr.
Whether selective serotonin reuptake inhibitors, MAO inhibitors, or tricyclics, antidepressants have proved to be the safest, most effective drugs for these patients, Dr.
Among them, citalopram, fluoxetine, and paroxetine belong to selective serotonin reuptake inhibitors (SSRIs), first-line therapeutic agents for treating a wide range of psychiatric disorders such as major depression, generalized anxiety disorder and post-traumatic disorder, to name but a few.
Tricyclic antidepressants and serotonin-norepinephrine reuptake inhibitors (SNRIs) "are our friends" because they treat depression and, unlike selective serotonin reuptake inhibitors, neuropathic pain, as well, he said.
In addition, a double-blind, placebo-controlled pilot study showed rapid efficacy of ALKS 5461 in 32 patients with major depressive disorder who failed to respond adequately to treatment with selective serotonin reuptake inhibitors (SSRIs) or selective serotonin-norepinephrine reuptake inhibitors (SNRIs), he said.
NORWAY -- Administering proton pump inhibitors (PPIs), which are used to relieve gastroesophageal reflux, together with selective serotonin reuptake inhibitors (SSRIs), which are used to treat depression, has been observed to elevate blood levels of SSRIs by significant amounts.
Washington, July 05 (ANI): A new study has suggested that children born to women who take certain antidepressants, including selective serotonin reuptake inhibitors, during the first trimester of pregnancy may modestly increase the risk of developing autism spectrum disorder (ASD).

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