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Paroxetine, sold under the brand name Paxil among others, is an antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class [7] used to treat major depressive disorder, obsessive–compulsive disorder (OCD), panic disorder, social anxiety disorder, post-traumatic stress disorder (PTSD), generalized anxiety disorder, and premenstrual dysphoric disorder. [7]
Very common (10-100% incidence) adverse effects include: Nausea; Sexual dysfunction (including anorgasmia (difficulty achieving an orgasm), erectile dysfunction, genital anaesthesia, ejaculation disorder, loss of libido etc.). Paroxetine is associated with a higher rate of sexual dysfunction than other SSRIs. [5] [page needed] Impaired ...
Paroxetine may produce discontinuation-related symptoms at a greater rate than other SSRIs, though qualitatively similar effects have been reported for all SSRIs. [ 181 ] [ 182 ] Discontinuation effects appear to be less for fluoxetine, perhaps owing to its long half-life and the natural tapering effect associated with its slow clearance from ...
In humans the effects of excess serotonin were first noted in 1960 in patients receiving an MAOI and tryptophan. [54] The syndrome is caused by increased serotonin in the CNS. [ 6 ] It was originally suspected that agonism of 5-HT 1A receptors in central grey nuclei and the medulla oblongata was responsible for the development of the syndrome ...
As demonstrated in table 2, paroxetine also inhibits the NOSs enzyme which could be the reason for its sexual dysfunction adverse effect, especially in men. [18] Paroxetine shows the highest affinity for muscarinic receptors of all the SSRIs which results in weak anticholinergic activity and therefore undesirable adverse effects.
Over two million prescriptions for paroxetine were written for children or adolescents in the US in 2002. [29]Funded by SmithKline Beecham, the acute phase of study 329 was an eight-week, double-blind, randomized clinical trial conducted in 12 university or hospital psychiatric departments in the United States and Canada between 1994 and 1997.
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[88] [216] [90] [85] Moreover, the small advantage of antidepressants over placebo may simply be a methodological artifact caused by unblinding due to the psychoactive effects and side effects of antidepressants, in turn resulting in enhanced placebo effects and apparent antidepressant efficacy.