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Psychopharmacology. Department of Psychiatry 1 st Faculty of Medicine Charles University, Prague Head: Prof. MUDr. Jiří Raboch, DrSc. Main Psychopharmacological Drugs. Antipsychotics Antidepresants Anxiolytics Hypnotics Cognitiv e s Psychostimulants. Overview of Antipsychotics.
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Psychopharmacology Department of Psychiatry 1st Faculty of Medicine Charles University, Prague Head: Prof. MUDr. Jiří Raboch, DrSc.
Main Psychopharmacological Drugs • Antipsychotics • Antidepresants • Anxiolytics • Hypnotics • Cognitives • Psychostimulants
Antipsychoticsof the 2nd Generation Efficacy • Positive symptoms are influenced significantly better than placebo, and equally or more then by the classical antidopaminergic neuroleptics. • Negative symptoms are reduced significantly better than by placebo or classical antidopaminergic neuroleptics. • Affective symptoms are influenced better than by placebo or classical antidopaminergic neuroleptics. • They significantly reduce or prevent the cognitive impairment. The reduction is higher in comparison to classical antidopaminergic neuroleptics. • The treatment resistant patients with schizophrenia are improved significantly better than by placebo and at least equally as by clozapine. • Maintenance treatment is more effective than maintenance on placebo and at least as effective as maintenance on classical neuroleptics.
Indication of Antidepressants • Depressive Disturbances • Affective Disorders • Obsessive-Compulsive Disorders • Panic Disorders • Eating Disorders • Psychosomatic Disorders • Posttraumatic Stress Disorder • Alcohol and Drugs Withdrawal Symptoms • Pain Syndromes • Enuresis • Narcolepsy
Neurotransmitter Reuptake Inhibition and Binding Affinity to Receptors Receptors: SE Serotonergic NE Noradrenergic M Muscarinic H Histaminic -N alpha noradrenergic
1st Generation of Antidepressants Mechanism of action: • Blockade of muscarine receptors • Histamine H1 receptors • Alpha 1 Adrenergic Receptors • Alpha 2 Adrenergic Receptors Many Side Effects • Danger of Intoxication • Many Interactions • Prolonged Effect (after 3-6 Weeks)
4th Generation of AntidepressantsDual acting antidepressantsMixed reuptake inhibitors
Action Profiles of Benzodiazepines Relief of anxiety Anticonvulsant Sedation action Induction of sleep Muscle relaxation Ansseau, M., Doumont, A., Diricq, S.: Methodology required to show clinical differences between benzodiazepines. Curr Med Res Opin 8, Suppl. 4, 108-114 (1984). (Except <Dormicum> and <Dalmadorm>)
Benzodiazepine Anxiolytics Indication: • States of Anxiety • Sleeplessness • Withdrawal Symptoms • Depressive States • Epilepsy • Convulsions • Tetanus Neonatorum • Extrapyramidal Undesirable Side Effects of Antipsychotics • Premedication in Anaestesiology • Panic States (Alprazolam, Bromazepam, Clonazepam in High Doses) • Algidic Syndromes (Stomatodynie, Neuralgie Trigemini, Cephalgia)