Behavior modifying drugs Flashcards
Major BMD drug classes
Antipsychotics (antidope)
Anxiolytics
Antidepressants
Miscellaneous drugs
Antipsychotics
Acepromazine: phenothiazine derivative
Blocks D2 dopamine receptor
Extralabel (tranquilizer) for behavior
Different anxiolytics
Benzodiazepines (diapzepam)
Azapirones (buspirone)
Nonbenzodiazepine (zapelon)
Benzodiazepines MOA
Positive allosteric modulator of GABA receptor → binds to BZD site of GABA receptor → enhances action of GABA (↑Cl influx) → inhibits monoamine NT release in CNS
Clinical uses of Benzodiazepines
Dogs: fears, phobias, anxiety
Cats: urine spraying, travel, anxiety
Benzodiazepine drugs
Diazepam*
Alprazolam
Clorazepate
Lorazepam
Oxazepam
Benzodiazepines side effects
Sedation, ataxia, muscle relaxation, ↑ appetite, paradoxical excitation, memory deficits
IM: muscle necrosis
Benzodiazepines side effect in cats
Hepatic necrosis (rare but fatal)
Benzodiazepines dependence
Withdrawal/ discontinuation syndrome
Nervousness, tremors, seizures
Reversed by admin of same drug
How is withdrawal/ discontinuation syndrome avoided?
Avoided by tapering the BZD dose 25% per week for a month
Buspirone (azapirone, type of anxiolytic)
Few side effects, no dependence or disinhibition
Few drug interactions
Delayed effects, takes weeks
Buspirone MOA
Full agonist at presynaptic 5HT1A receptors (↓ serotonin synthesis and release)
Busoprione uses
Dogs: general anxiety
Cats: urine spraying, reduce anxiety
Nonbenzodiazepine hypnotics
Zaleplon, eszopiclone, zolpidem
Treats acute-onset, severe phobia states: thunderstorm, separation anxiety
Antidepressants
TCAs (tricyclic)
SSRIs (selective serotonin reuptake inhibitors)
MAOIs (Monoamine oxidase inhibitors)
Atypical antidepressants