MN 553 EXAMINATION 2026 VERIFIED
SOLUTION COMPENDIUM
◉Clinical use for TCAs. Answer: Nocturnal enuresis
Intractable pain
Anxiety disorders.
◉Pharmacodynamics of TCAs. Answer: Act on neurotransmitters
serotonin and norepinephrine and histamine and acetylchoine
◉Pharmacokinetics of TCAs. Answer: Fairly long half life of 6-18
hours
Liver metabolism strong CYP2D6
◉What should the treatment for depression always include. Answer:
Referral for psychological therapy
◉Treatment for pediatric depression. Answer: Fluoxetine (Prozac)
,◉Why are MAOIs avoided. Answer: Low safety margin
Not a first line drug
Many drug-drug , food- drug interactions
◉SSRI pharmacodynamics. Answer: Selective inhibitory effects on
presynaptic serotonin reuptake
◉SSRI pharmacokinetics. Answer: Slow absorption
Half-life 26 hours
Extensive first pass metabolism
◉Fluoxetine half life. Answer: 1-3 days
◉Fluoxetine first metabolite. Answer: 4-16 days
◉SSRI ADRs. Answer: CNS
, GI
Sexual dysfunction
Serotonin syndrome
◉SSRI patient education. Answer: Pregnancy category B, C, or D
Withdrawal symptoms if abruptly discontinued
Avoid St. johns wort
◉SSRI monitoring. Answer: Never give more than 4 weeks on first
prescription
Monitor target symptoms
◉SNRI clinical uses. Answer: Major depressive disorder
GAD
Neuropathy
SOLUTION COMPENDIUM
◉Clinical use for TCAs. Answer: Nocturnal enuresis
Intractable pain
Anxiety disorders.
◉Pharmacodynamics of TCAs. Answer: Act on neurotransmitters
serotonin and norepinephrine and histamine and acetylchoine
◉Pharmacokinetics of TCAs. Answer: Fairly long half life of 6-18
hours
Liver metabolism strong CYP2D6
◉What should the treatment for depression always include. Answer:
Referral for psychological therapy
◉Treatment for pediatric depression. Answer: Fluoxetine (Prozac)
,◉Why are MAOIs avoided. Answer: Low safety margin
Not a first line drug
Many drug-drug , food- drug interactions
◉SSRI pharmacodynamics. Answer: Selective inhibitory effects on
presynaptic serotonin reuptake
◉SSRI pharmacokinetics. Answer: Slow absorption
Half-life 26 hours
Extensive first pass metabolism
◉Fluoxetine half life. Answer: 1-3 days
◉Fluoxetine first metabolite. Answer: 4-16 days
◉SSRI ADRs. Answer: CNS
, GI
Sexual dysfunction
Serotonin syndrome
◉SSRI patient education. Answer: Pregnancy category B, C, or D
Withdrawal symptoms if abruptly discontinued
Avoid St. johns wort
◉SSRI monitoring. Answer: Never give more than 4 weeks on first
prescription
Monitor target symptoms
◉SNRI clinical uses. Answer: Major depressive disorder
GAD
Neuropathy