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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.
Drug intolerance or drug sensitivity refers to an inability to tolerate the adverse effects of a medication, generally at therapeutic or subtherapeutic doses. Conversely, a patient is said to be "tolerating" a drug when they can tolerate its adverse effects.
This is a list of drugs and substances that are known or suspected to cause Stevens–Johnson syndrome This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
The main side effects heroin causes on appearance according to New Health Advisor are: Weight loss due to loss of appetite, or because a heroin abuser may not prioritize eating Painful abscesses ...
As an example, tricyclic antidepressants (TCAs) are very poorly tolerated and often produce severe side effects including sedation, orthostatic hypotension, and anticholinergic effects, whereas newer antidepressants have far fewer adverse effects and are well tolerated. Drug tolerability should not be confused with drug tolerance, which refers ...
Many patients will not develop these side effects, although there is still a significant possibility of risks associated with Antipsychotic usage. The percentage of patients affected by side effects like Tardive dyskinesia is significantly high and estimated to be a 20-50% prevalence. [1] [2]
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]
“Although many patients may do well with buprenorphine alone, many — probably most — need counseling along with the medication,” Kleber said. Dr. Brenzel, the medical director of Kentucky’s Department for Behavioral Health, Developmental and Intellectual Disabilities, which oversees drug treatment in the state, said he was unaware of ...