Y40-Y59: Drugs, medicaments and biological substances causing adverse effects in therapeutic use
Y49: Psychotropic drugs, not elsewhere classified
Psychotropic drugs, not elsewhere classified, refer to a broad group of medications that can affect psychological function, mood, consciousness, or behavior. These drugs are used in the treatment of a range of psychological disorders such as anxiety, depression, bipolar disorder, and schizophrenia. However, improper use, overdosing, or abrupt discontinuation can lead to adverse reactions, otherwise known as psychotropic drug-induced disorders. These disorders can manifest in different ways, depending on the specific drug used and the individual's response. Symptoms can range from mild, like mood swings, to severe, like psychosis, and can take place immediately or gradually over time. The progression of these disorders typically coincides with the duration of the drug use, and effects can be reversed in most cases by discontinuation or adjusting the dosage of the medication under the supervision of a healthcare professional. Such changes should never be attempted without professional oversight due to the potential for withdrawal symptoms or the worsening of the underlying psychological disorder.
Subcodes of Y49:
- Y49.0: Tricyclic and tetracyclic antidepressants
- Y49.1: Monoamine-oxidase-inhibitor antidepressants
- Y49.2: Other and unspecified antidepressants
- Y49.3: Phenothiazine antipsychotics and neuroleptics
- Y49.4: Butyrophenone and thioxanthene neuroleptics
- Y49.5: Other antipsychotics and neuroleptics
- Y49.6: Psychodysleptics [hallucinogens]
- Y49.7: Psychostimulants with abuse potential
- Y49.8: Other psychotropic drugs, not elsewhere classified
- Y49.9: Psychotropic drug, unspecified
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