Men's Health - ED Flashcards
physiology of erection
ACh > NO > guanylate cyclase > cGMP
ACh + pgE > adenyl cyclase > cAMP
leads to SM relaxation and VD > blood inflow
physiology of detumescence
deactivation of parasymp (cGMP deactivate PDE5, stops VD)
activation of symp (induces SM contraction and reduces blood flow)
what to check for in ED pts
cardiac fx
pde5i uses
causes erection upon sexual stimulation
pde5i ddi
cyp3a4i, alpha blockers
pde5i se
priapisms (seek TX within 4h),
headache
hearing loss
ocular issues
pde5i advice
do not give up after one failed dose
pde5i ci
nitrates
which pde5i must take before sex?
(1h before) sildenafil, vardenafil
(30min before) avanafil
pde5i without food
silde, varde
pde5i dosing adj hep
s,v,t
pde5i dosing renal
s, t
varde se
ocular, qtc prolong
silde se
ocular
tada se
muscle pain