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Prolonged fatigue is fatigue that persists for more than a month, and chronic fatigue is fatigue that lasts at least six consecutive months, which may be caused by a physical or psychological illness, or may be idiopathic (no known cause). [1] Chronic fatigue with a known cause is twice as common as idiopathic chronic fatigue. [6]
The major limitation of SSRIs concerns their delay of action. It appears that the clinical efficacy of SSRIs becomes evident only after a few weeks. [217] SSRIs can be combined with a host of other drugs including bupropion, α 2 adrenergic antagonists (e.g., yohimbine) as well as some of the atypical antipsychotics. The augmentation agents are ...
Conversely, hypertension or tachycardia can be treated with short-acting antihypertensive drugs such as nitroprusside or esmolol; longer acting drugs such as propranolol should be avoided as they may lead to hypotension and shock. [6] The cause of serotonin toxicity or accumulation is an important factor in determining the course of treatment.
Antidepressants, including SSRIs, can cross the placenta and have the potential to affect the fetus and newborn, including an increased chance of miscarriage, presenting a dilemma for pregnant women to decide whether to continue to take antidepressants at all, or if they do, considering if tapering and discontinuing during pregnancy could have ...
These past discoveries in psychopharmacology led to the development of antidepressants and a range of drugs with different functions on those neurotransmitters. But a new generation of antidepressants were resulted from the discovery of selective serotonin reuptake inhibitors (SSRIs) (e.g., fluoxetine).
Antidepressants that have dual mechanisms of action inhibit the reuptake of both serotonin and norepinephrine and, in some cases, inhibit with weak effect the reuptake of dopamine. [10] Antidepressants affect variable neuronal receptors such as muscarinic cholinergic, α 1 - and α 2-adrenergic, H 1-histaminergic, and sodium channels in the ...
The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...
Functional somatic syndrome (FSS) is any of a group of chronic diagnoses with no identifiable organic cause.This term was coined by Hemanth Samkumar. [citation needed] It encompasses disorders such as fibromyalgia, chronic widespread pain, temporomandibular disorder, irritable bowel syndrome, [1] lower back pain, tension headache, atypical face pain, non-cardiac chest pain, insomnia ...