BPH and ED Flashcards
Population related risks for prostate enlargement
BPH more common in American/Australian and less common in Asian cultures
Tests and exams for diagnosis of BPH
AUA symptom index, DRE, neuro exam, UA, PSA
Relax smooth muscle of the prostate and bladder neck without interfering with bladder contractility.
Decrease bladder resistance to urinary outflow
Work quickly and increase urinary flow
α-blockers , Alpha-1 adrenergic antagonists
Major side effect of α-blockers , Alpha-1 adrenergic antagonists
orthostatic hypotension
Name the α-blockers , Alpha-1 adrenergic antagonists
tamsulosin (flomax), doxazosin (cardura), Terazosin (Hytrin)
α-blockers , Alpha-1 adrenergic antagonist that causes less orthostatic HTN/fluid retention but may cause floppy iris syndrome
tamsulosin (flomax)
α-blockers , Alpha-1 adrenergic antagonist that may have secondary benefit to patients with cardiac dz
doxazosin (cardura)
α-blockers , Alpha-1 adrenergic antagonist often used for HTN and should be taken at bedtime to avoid hypotension
terazosin (hytrin)
Blocks 5-alpha reductase, the enzyme that activates testosterone in the prostate.
Impairs prostate growth by inhibiting the conversion of testosterone to dihydrotestosterone
5-α-Reductase inhibitors
What zone of the prostate doe 5-α-Reductase inhibitors
cause changes in the epithelial cells?
transition zone
Name the 5-α-Reductase inhibitors
Finasteride (Proscar) and Dutasteride (Avodart)
Antagonizes acetylcholine receptors. Used to help urgency symptoms by stabilizing the detrusor muscle
antimuscarinics
Herb derived from dark berries of a palm tree. Inhibits testosterone conversion to DHT. Stops DHT at receptor sites
saw palmetto
Vitamin that may prevent or decrease prostate enlargement
zinc
Name the PDE-5 inhibitors
Sildenafil (Viagra), Vardenafil (Levitra), Tadalafil (Cialis)
Work by blocking the action of type 5 phosphodiesterase maintaining vasodilation and increased blood flow to the penis
PDE-5 inhibitors
What should be avoided in patient who is taking a PDE-5 inhibitors due to sharp decrease in BP?
nitrates
Use for patients with ED who have contraindications to 5 PDE inhibitors. Available as intracavernosal injection or intraurethral suppository
Alprostadil (PGE1)
Should be avoided in patients with leukemia, myeloma, or sickle cell anemia or sickle cell trait
alprostadil
Treatment for premature ejaculation
SSRIs (fluoxetine or paroxetine) or TCA (clomipramine)