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In toxicology, the median lethal dose, LD 50 (abbreviation for "lethal dose, 50%"), LC 50 (lethal concentration, 50%) or LCt 50 is a toxic unit that measures the lethal dose of a given substance. [1] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test duration.
Trazodone lacks any affinity for the muscarinic acetylcholine receptors, so does not produce anticholinergic side effects. mCPP, a non-selective serotonin receptor modulator and serotonin releasing agent , is an active metabolite of trazodone and has been suggested to possibly play a role in its therapeutic benefits.
The median toxic dose encompasses the category of toxicity that is greater than half maximum effective concentration (ED 50) but less than the median lethal dose (LD 50). However, for some highly potent toxins (ex. lofentanil , botulinum toxin ) the difference between the ED 50 and TD 50 is so minute that the values assigned to them may be ...
In toxicology, the lethal dose (LD) is an indication of the lethal toxicity of a given substance or type of radiation.Because resistance varies from one individual to another, the "lethal dose" represents a dose (usually recorded as dose per kilogram of subject body weight) at which a given percentage of subjects will die.
The median effective dose is the dose that produces a quantal effect (all or nothing) in 50% of the population that takes it (median referring to the 50% population base). [6] It is also sometimes abbreviated as the ED 50, meaning "effective dose for 50% of the population". The ED50 is commonly used as a measure of the reasonable expectancy of ...
For many drugs, severe toxicities in humans occur at sublethal doses, which limit their maximum dose. A higher safety-based therapeutic index is preferable instead of a lower one; an individual would have to take a much higher dose of a drug to reach the lethal threshold than the dose taken to induce the therapeutic effect of the drug.
The drug is a silent antagonist of the serotonin 5-HT 1B receptor, unlike the related agent GR-127935. [ 1 ] [ 4 ] GR-55562 has around 10-fold selectivity for the serotonin 5-HT 1B receptor over the serotonin 5-HT 1D receptor and has only weak affinity for a number of other serotonin receptors .
This is a list of adverse effects of the antidepressant trazodone, sorted by frequency of occurrence. [1] [2] [3] Very common.
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