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Drug tolerance or drug insensitivity is a pharmacological concept describing subjects' reduced reaction to a drug following its repeated use. Increasing its dosage may re-amplify the drug's effects; however, this may accelerate tolerance, further reducing the drug's effects.
"Substance use pertains to using select substances such as alcohol, tobacco, illicit drugs, etc. that can cause dependence or harmful side effects."On the other hand, substance abuse is the use of drugs such as prescriptions, over-the-counter medications, or alcohol for purposes other than what they are intended for or using them in excessive ...
An issue with this theory is that most addictive drugs cause an individual to build up a tolerance and the effects of the drug will decrease as an individual's tolerance increases. This requires individuals to use a higher dosage of the substance which in many causes can cause adverse side effects. [34] Dopamine is correlated with increased ...
The increased GABA inhibition on the neural systems caused by benzodiazepines is counteracted by the body's development of tolerance to the drug's effects; the development of tolerance occurs as a result of neuroadaptations, which result in decreased GABA activity and increased excitability of the glutamate system; these adaptations occur as a ...
It’s also difficult to say that heavy use of marijuana causes certain mental health symptoms — it may simply be that people experiencing certain mental health conditions are more likely to ...
Anticonvulsants as a group however are known to cause tolerance to the anti-seizure effect. [40] SSRI drugs, which have an important use as antidepressants, engender a discontinuation syndrome that manifests with physical side effects; e.g., there have been case reports of a discontinuation syndrome with venlafaxine (Effexor). [24]
In 2021, an estimated 1.7 million Americans 12 and older used kratom, per the Substance Abuse and Mental Health Services Administration's National Survey on Drug Use and Health.
Psychological dependence develops through consistent and frequent exposure to a stimulus. After sufficient exposure to a stimulus capable of inducing psychological dependence (e.g., drug use), an adaptive state develops that results in the onset of withdrawal symptoms that negatively affect psychological function upon cessation of exposure.