ED Flashcards
Failure of the testes to produce testosterone
Primary hypogonadism
What is elevated in hypogonadism?
- LH
- FSH
Failure in the hypothalamus or pituitary to produce FSH or LH
Secondary hypogonadism
What are 8 symptoms needed for male hormone replacement?
- Low or absent sex drive
- Fatigue
- Loss of body hair
- Muscle loss
- Erectile dysfunction
- Osteoporosis
- Infertility
- Low serum testosterone levels
How is methyltestosterone taken?
Orally
Why is methyltestosterone not commonly used anymore?
Higher risk of hepatotoxicity and large pass effect
How is Fluoxymesterone taken?
Orally
Why is fluoxymesterone avoided?
High risk of hepatotoxicity
How is testosterone undecanonate taken?
Orally
True or false: testosterone undecanonate has a high risk of hepatotoxicity
False
How is Striant taken?
Buccally
How is testosterone cypionate taken?
IM
How is testosterone enanthate taken?
IM
What is a good counseling point for testosterone transdermal patch?
Avoid swimming, showering, or washing administration sites for 3 hours after administration
What is a good counseling point for estrogen gel?
- Cover application to avoid transfer to people
- Avoid swimming, showering, or washing administration sites for 2 hours after administration
What is a good counseling point for the testosterone transdermal spray?
- Cover application to avoid transfer to people
- Avoid swimming, showering, or washing administration sites for 2 hours after administration
Where should the testosterone transdermal solution be applied?
In the armpit
What should you apply before administering the testosterone solution?
Deodorant
What testosterone product must be administered by a healthcare professional?
Testosterone subcutaneous implant pellet
What testosterone product has a higher incidence of intranasal adverse effects?
Testosterone nasal gel
What testosterone product must be enrolled in the REMS program? Why?
Testosterone undecanoate injection; risk of administration and respiratory reactions
How often should patients be monitored when taking hormone replacement?
Every 3-4 months
What are 3 labs that are done when patients are taking hormone replacement?
- Serum lipids
- Hematocrit
- Prostate-specific antigen (PSA)
When should you discontinue therapy regarding hematocrit?
If HCT exceeds 55% at any time
What can testosterone worsen?
Urinary symptoms in patients with BPH
What are contraindications with testosterone replacement?
- Untreated prostate cancer
- Men who have breast cancer
When should hormone replacement be implemented?
In symptomatic patients once primary hypogonadism is confirmed
How is erectile dysfunction defined?
As a persistent failure, 3 month duration, to achieve a penile erection to allow for satisfactory sexual intercourse
What 3 things does organic ED arise from?
- Vascular
- Neurologic
- Hormonal etiology
When patients do not respond to psychogenic stimuli and have no organic causes
Psychogenic ED
What age does ED generally effect men?
Males aged 40 or older
What are 4 types of medications that may cause ED?
- Antidepressants
- Antihypertensives
- Antipsychotics
- BPH medications
What are 3 other substances that may contribute to ED?
- Alcohol
- Nicotine
- Anticholinergics
What labs may need to be assessed for ED?
- Free or total serum testosterone
- PSA for BPH
What must be done before men can be treated for ED?
A stress test
What should you avoid when taking PDE-5 inhibitors?
Alcohol due to the risk of increased orthostatic hypotension and drowsiness
What are the 4 PDE-5 inhibitors?
- Sildenafil
- Vardenafil
- Tadalafil
- Avanafil
What PDE-5 inhibitors need to be taken on an empty stomach?
- Sildenafil
- Vardenafil
What is the onset of action for tadalafil?
2 hours
What is the onset of action for most of the PDE-5 inhibitors?
1 hour
What 4 things would be indicative of a dose reduction of the PDE-5 inhibitors?
- Patient is >65
- Using an alpha-1 blocker
- Mod/strong CYP3A4 inhibitor
- Severe renal or liver disease
What is the reduced dose of the PDE-5 inhibitors considered as?
1/2 the normal dose
What PDE-5 inhibitor has the lowest risk of hypotension?
Tadalafil
What PDE-5 Inhibitors has a risk of visual light sensitivity and blurred vision?
- Sildenafil
- Vardenafil
- Avanafil
If priapism occurs what should be given first?
Pseudoephedrine
If the first line intervention didn’t work for priapism, what should be given?
Phenylephrine
When can testosterone replacement be used for patients with ED?
When they have low levels of testosterone
What is the MOA of alprostadil?
Stimulates adenylyl cyclase leading to an increase in cAMP an eventual smooth muscle relaxation of the arterial blood vessels
What patients would alprostidil be more effective in?
Patients with diabetes and postradical prostatectomy
What drug has the highest risk of priapism?
Alprostadil
Which alprostadil formulation has the better efficacy?
Intracavernosal
What is first line therapy for ED, unless contraindicated?
PDE-5 inhibitors
What is second line treatment for ED?
- Use a different PDE-5 inhibitor
- Alprostadil intraurethral suppositories
- Intracavernous injection
When do BPH symptoms generally appear in males?
50 years or older
What enzyme converts testosterone and androstenedione to DHT?
Type II 5-alpha reductase
What are 7 medications that can worsen BPH?
- Anticholinergics
- Antihistamine
- Caffeine
- Decongestants
- SNRIs and TCAs
- Testosterone products
- Diuretics
What are two factors that are involved in LUTS?
- Static factors
- Dynamic factors
What is the PSA value that is indicative of an enlarged prostate?
> 1.4 mcg/L
What are 4 labs that are done to diagnose BPH?
- PSA
- Serum creatinine
- BUN
- Urinalysis
What are the 4 2nd generation alpha-antagonists?
- Prazosin
- Doxazosin (Cardura & Cardura XL)
- Terazosin
What are the 3rd generation alpha-antagonists?
- Alfusozin
- Tamsulosin
- Silodosin
What are 3 side effects of the 2nd generation alpha-antagonists
- Hypotension
- Dizziness
- Syncope
When should the 2nd generation alpha-antagonists be taken?
At night before bed to avoid hypotension
What 2 3rd generation alpha-antagonists should be taken after meals?
- Alfuzosin
- Tamsulosin
When do the alpha antagonists reduce urinary symptoms?
2-6 weeks
True or false: the alpha antagonists do not reduce prostate size
True
What are 4 common adverse effects of the alpha antagonists?
- Hypotension (2nd gen. Mostly)
- Floppy iris syndrome
- Rhinitis
- Abnormal ejaculation
What are the 2 5alpha-reductase inhibitors?
- Finasteride
- Dutasteride
True or false: the 5 alpha-reductase inhibitors have a faster onset than the alpha 1 antagonists
False
Which 5 alpha-reductase inhibitor has the larger decrease in DHT?
Dutasteride
What are 4 ADRs of the 5 alpha reductase inhibitors?
- Erectile dysfunction
- Decreased libido
- Gynecomastia
- Ejaculatory dysfunction
How long does it take to see a 50% decrease in PSA levels with the 5 alpha-reductase inhibitors?
6-12 months
What is important to know with the 5 alpha-reductase inhibitors?
Pregnancy category X
When should 2.5 mg dose of Tadalafil be used?
If CrCl is 30-50
What are 2 lifestyle modifications used for BPH?
- Avoiding alpha agonist
- Limiting hydration before bed
What are 3 non pharmacologic treatments that can be utilized if pharmacotherapy has failed?
- TURPS
- TUIPS
- Prostatectomy
What is the most effective treatment for patients with LUTS?
The combination of an alpha antagonist and 5 alpha-reductase inhibitors
What may be another treatment option for patients with LUTS?
Beta-3 agonists combined with an alpha blocker
What PDE-5 inhibitor has a side effect of muscle weakness?
Tadalafil
When can you not use silodosin?
CrCl is <30
When should you decrease the dose for sildosin?
CrCl is 30-50