GU pharm chart Flashcards
what are the two PDE5 inhibitors
Sildenafil
Tadalafil
what is the PDE5 inhibitors MOA
inhibits PDE5 to incr [NO] leading to corpus cavernosum relaxation & inflow of blood to cause erection
what is the indication of the PED5 inhibitors
ED
Pulm artery hypertension [Adcirca]/ [Revatio]
what is the 5α-reductase inhibitor
Finasteride
what is the MOA of Finasteride
decreases prostatic tissue growth sec to inhibiting conversion testosterone to dihydrotestosterone
reduce static factor & induce apoptosis glandular cells;
what is the indicaiton of Finasteride
2nd line for Mod to Severe BPH (AUA scores)
what is the α1 adrenergic antagonist
3rd Generation
Tamulosin
MOA of Tamulosin
relax bladder neck, prostatic urethra, prostatic sm muscle
indication of Tamulosin
Mod to Severe BPH (AUA scores)
reduce dynamic factor (neurologic inhibition)
what is the herbal drug currently not recommended
Saw Palmetto
what are the Anti-androgen
Anti-neoplastic
Leuprolide
Flutamide
what si the MOA of Leuprolide
GnRH agonist;
agonist of LHRH
what is the indications of Leuprolide
palliative Rx prostate cancer;
endometriosis
MOA of Flutamide
nonsteroidal anti-androgen that inhibits androgen binding in target tissues
indications of Flutamide
metastatic prostate cancer w/ LHRH agonist
what is a sex hormone androgen drug
testosterone
what is the MOA of testosterone
replacement
what is the indication of testosterone
hypogonadism
what are the two M3 antimuscarinic
Oxybutinin
Tolterodine
MOA of M3 antimuscarinic
selective antagonist of bladder muscarinic receptors decr detrussor muscle pressure, incr residual urine volume
indication of M3 antimuscarinic
overactive bladder,
urge incontinence
what is the Beta-3 Agnoist
Mirabegron
MOA of Mirabegron
activates beta-3 adrenergic receptors in bladder relaxing detrussor muscle during urine storage phase
indication of Mirabegron
Overactive bladder w/ sxs of urinary frequency, urgency, or urge UI
what is the Tricyclic
Antidepressant
Imipramine
MOA of Imipramine
incr synaptic [serotonin, norepinephrine]; down regulation of ß-andrenergic receptors; anti-cholinergic effect
indication of Imipramine
depression;
off label for anticholinergic impact in UI
Anti-hypertensive:
Central alpha-adrenergic inhibitor
Alpha2-adrenergic agonist
Methyldopa
MOA of Methyldopa
central alpha-adrenergic inhibition decrease sym outflow to heart, kidneys, peripheral vasculature
indications of Methyldopa
HTN in PG
Anti-hypertensive:
Non-selective Alpha1 & Beta Receptor Blocker
Beta blocker w/alpha activity
Labetalol
MOA of Labetalol
Blocks α-, β1-, β2-adrenergic receptors
Indications of Labetalol
HTN in PG
Folic Acid is in what drug class
Vitamin
Water Soluble
MOA of Folic Acid
Folate required for formation of multiple co-enzymes in protein synthesis
indications of Folic Acid
supplement to prevent neural tube defects
Vitamin B6
Anti-Nauseant w/ Doxylamine
Pyridoxine
MOA of Pyridoxine
With Doxylamine use:
inhibits CRTZ; diminishes vestibular stimulation; depresses labyrinthine function; sedating
indications of Pyridoxine
N/V of pregnancy
Antihistamine
Anti-Nauseant w/ Pyridoxine
Doxylamine
Don’t confuse w/ Doxycycline abx
MOA of Doxylamine
With Doxylamine use:
inhibits CRTZ; diminishes vestibular stimulation; depresses labyrinthine function; sedating
Indications fo Doxylamine
N/V of pregnancy
Other alternatives for N/V
metaclopromide, diphenhydramine
Tocolytic Agents
Magnesium Sulfate
MOA of
Magnesium Sulfate
decr acetylcholine in motor nerve terminals;
slows rate S-A node impulse formation; relaxation of bronchial smooth muscle
Indications of
Magnesium Sulfate
premature labor/eclampsia; seizure; torsade de pointes; severe Mg deficiency; unresponsive status asthmaticus (in children)