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Since some tricyclic antidepressants (TCAs) and monoamine oxidase inhibitors (MAOIs) can cause harmful interactions if used within 14 days of starting treatment with other antidepressants, you may ...
Cross-tolerance is a phenomenon that occurs when tolerance to the effects of a certain drug produces tolerance to another drug. It often happens between two drugs with similar functions or effects—for example, acting on the same cell receptor or affecting the transmission of certain neurotransmitters.
Tricyclic antidepressants (TCAs) Serotonin-norepinephrine reuptake inhibitors (SNRIs) Buspirone; Triptan; Mirtazapine; Methylene blue; Painkillers of the NSAIDs drug family may interfere and reduce efficiency of SSRIs and may compound the increased risk of gastrointestinal bleeds caused by SSRI use. [101] [103] [165] NSAIDs include: Aspirin
The specific interaction between drugs and their receptors is referred to as "drug action", and the widespread changes in physiological or psychological function is referred to as "drug effect". [2] These drugs may originate from natural sources such as plants and animals, or from artificial sources such as chemical synthesis in the laboratory.
Tricyclic antidepressants (TCAs) are a class of medications that are used primarily as antidepressants. TCAs were discovered in the early 1950s and were marketed later in the decade. [1] They are named after their chemical structure, which contains three rings of atoms. Tetracyclic antidepressants (TeCAs), which contain four rings of atoms, are ...
The pharmacology of antidepressants is not entirely clear.. The earliest and probably most widely accepted scientific theory of antidepressant action is the monoamine hypothesis (which can be traced back to the 1950s), which states that depression is due to an imbalance (most often a deficiency) of the monoamine neurotransmitters (namely serotonin, norepinephrine and dopamine). [1]
Because serotonin and the related hormone melatonin are involved in promoting sleep, they counterbalance the wake-promoting action of increased catecholaminergic neurotransmission. This is accounted for by the lethargic feel that some SSRIs can produce, although TCAs and antipsychotics can also cause lethargy albeit through different mechanisms.
However, there are differences between TCA related antidepressants and classical TCAs in terms of side effect profiles and withdrawal when compared to SSRIs. [67] There is evidence a prominent side-effect of antidepressants, emotional blunting, is confused with a symptom of depression itself. The cited study, according to Professor Linda Gask was: