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ED and BPH
Pharm 2 Exam 4
44
Health Care
Graduate
04/13/2009

Additional Health Care Flashcards

 


 

Cards

Term
Category of ED drugs
Definition

phosphodiesterase 5 inhibitors (PDE5 I)

prostaglandin E-1

pellets

Term
phosphodiesterase 5 inhibitors (PDE 5 I)
Definition

sildenafil

verdenafil

tadalafil

Term
how is sildenafil dosed
Definition
1 hr before sexual activity
Term
how is vardenafil dosed
Definition

taken 1 hr before sexual activity

decr. dose in >65 yrs

Term
MOA of PDE-5 I's
Definition

selectively inhibit PDE-5 -> incr cGMP levels

=makes erection last longer

 

***enhance normal response to sexual stimuli!

Term

which PDE-5 I absorption

is NOT affected by food

Definition
tadalafil
Term
absorption of sildenafil and vardenafil is slowed by?
Definition
high fat meals
Term
PDE-5 I's metabolized by
Definition
p3A4
Term
AE PDE-5 I's
Definition

HA

flushing

dyspepsia

nasal cong

hypoTN

priapism

color vision changes (NAION)

Term
how does vardenafil change EKG
Definition
prolonged QTI
Term
PDE-5 I cannot be used w/ what drugs
Definition

nitrates->causes severe hypoTN

alpha blockers->postural hypoTN

 

Term
how does PDE-5 I affect P3A4?
Definition
in inhibits the enzyme->suppress met. and incr levels
Term
prostaglandin E-1
Definition
Alprostadil
Term
MOA Alprostadil
Definition

injection

produces erection when injected directly into corpus cavernosum

 

relaxation of sm mm

Term
what is the max that alprostadil can be dosed
Definition
NOT to be used more than 3x/wk and more than 1x/24hrs
Term
how should the dose of alprostadil be determined?
Definition

in the office

(<1hr)

Term
AE alprostadil
Definition

burning

prolonged erection

penile fibrosis w/ contd used

Term
how are pellets used
Definition
loaded into plastic applicator and inserted 1.5" into the urethra
Term
how quickly do pellets take effect
Definition

5-10 mins (determined in office)

 

lasts 30-60 mins

 

NO MORE THAAN 2x/24 hrs

Term
AE pellets
Definition
dull ache in penis
Term
BPH drug categories
Definition

5-alpha reductase inhibitors

alpha-1 adrenergic antagonists

saw palmetto

Term
5-alpha reductase inhibitors
Definition

finasteride

dutasteride

Term
finasteride MOA
Definition

inhibit 5-alpha reductase

-> converts test to DHT (the active form in prostate)

Term
finasteride decr. DHT by _____% w/o reducing ______
Definition
70%; testosterone
Term
finasteride is good at treating what type of obstruction?
Definition
mechanical
Term
finasteride is most effective in what type of patients
Definition
pts w/ HIGH degree of enlargement
Term
do BPH pts on finasteride require lifelong or acute tx?
Definition
LIFE LONG!!
Term
how long does it take finasteride to take effect
Definition
6-12 mos
Term
AE finasteride
Definition

decr. ejaculate vol. and libido

decr serum PSA

 

Term
what test should be done when Rx finasteride
Definition

PSA before Rx, and rechecked in 6mos

if no fall -> think CA

Term
Dutasteride MOA
Definition

inhibit 5-alpha reductase

-> STOPS testosterone ->DHT

Term
where does dutasteride work
Definition
prostate, skin, and liver!
Term
which has a more complete reduction in DHT finasteride or dutasteride?
Definition
dutasteride
Term
Goal of BPH tx
Definition

decr urinary s/sx

delay progression

Term
AE dutasteride
Definition

harmful to male fetus

-> inhibit external male genitalia

(women DO NOT handle)

Term
CI/interactions dutasteride
Definition

NO PREGO

cannot donate blood (during and 6 mos later)

Term
alpha-1 adrenergic antagonists
Definition

terazosin

doxazosin

tamsulosin

alfuzosin

Term
MOA alpha-1 adrenergic antagonists
Definition
relax sm mm in bladder neck, prostate, urethra
Term
alpha 1 adrenergic antagonists work best on what type of obstruction
Definition
dynamic (expulsion) of the urethra
Term
which alpha 1 adr. ant. work on blood vessels
Definition

terazosin

doxazosin

Term
which alpha 1 adr. ant. work best on prostate
Definition

tamsulosin

alfuzosin

Term
alpha 1 adrn. ant are preferred in what type of pts
Definition
pts w/ mild obstruction
Term
AE alpha adrn. ant.
Definition

terazosin, doxazosin -> decr BP

tamsulosin-> abn ejaculation

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