Genito-urinary system Flashcards
Which antidepressant can be used to manage stress incontinence in women?
Duloxetine 40mg BD
What bladder symptoms are manages with anti-muscarinic drugs?
Urge incontinence
Name some anti-muscarinic drugs used to manage urge incontinence?
Oxybutynin, tolterodine, solifenacin, fesoterodine, dairfenacin, flavoxate, propantheline bromide
Antimuscarinic side effects?
Constipation, dry mouth, dizziness, tachycardia
Some contra-indications for antimuscarinics in urge incontinence?
Myasthenia gravis, urinary retention, GI obstruction, severe UC
Safety concerns with mirabegron?
Can cause QT prolongation
Contra-indicated in severe uncontrolled hypertension, monitor blood pressure during treatment
What drug can be used for nocturnal enuresis in children and what is the main side effect?
Desmopressin
Risk of hyponatraemic convulsions - avoid fluid overload
What is the most common cause of urinary retention?
Benign prostatic hyperplasia
What is 1st line treatment for urinary retention in BPH?
Alpha-adrenoreceptor blockers
How do alpha-adrenoreceptor blockers work?
Relax prostatic smooth muscle causing an increased urinary flow rate + improvement in obstructive symptoms
Name some alpha-adrenoreceptor blockers
Tamsulosin, alfuzosin, doxasozin, terazosin, indoramin
Side effects of alpha-adrenoreceptor blockers such as tamsulosin?
Hypotension
Intra-operative floppy iris syndrome
‘Alfuzosin is contra-indicated in postural hypotension’
True or false?
True
All alpha-adrenoreceptor blockers are
What counselline should be given to a patient starting an alpha-adrenoreceptor blocker such as tamsulosin?
Take the first dose at bedtime as there is a risk of hypotension
Driving may be impaired
When can tamsulosin be sold OTC?
- Men aged 45-75
- Over 3 months symptoms of BPH
- 400mcg daily
How much tamsulosin can be supplied to a patient OTC?
Initially a 2 weeks supply
If no improvement of symptoms in 2 weeks then refer to GP
If improvement in symptoms can supply a further 4 weeks, after 6 weeks must see GP for confirmation that they can continue to take
What is second line treatment for urinary retention in BPH?
5-alpha reductase inhibitor AND alpha-adrenoreceptor blocker
Name some 5-alpha reductase inhibitors?
Finasteride + dutasteride
What doses of finasteride are given for BPH?
5mg OD
Male baldness - 1mg OD
MHRA safety warning associated with finasteride?
Reports of depression and suicidal thoughts
Stop treatment and inform healthcare professional if depression develops
Safety concerns with finasteride + dutasteride?
- Risk of male breast cancer, report any changes to breast tissue
- Can be excreted in semen, use a condom if risk of pregnancy. Broken/crushed tablets should not be handled by women of child-bearing potential
What are the Fraser guidelines for prescribing contraception for under 16s?
Can provide if:
- They understand the drs advice
- Can’t be persuaded to tell parents
- Very likely to continue to have sex
- Without contraception physical or mental health will suffer
- It is in the patient’s best interest
What are the advantages of combined hormonal contraceptives?
- Reliable and reversible
- Reduced dysmennorhoea + menorrhagia
- Reduced PMT
- Less benign breast disease
- Reduced pelvic inflammatory disease
- Reduced risk of ovarian/endometrial Ca
When can COC be started?
Any time in the menstrual period
If after day 6 in cycle use protection for 7 days
What are phasic preparations and when should they be offered?
Contain varying amounts of oestrogen + progestogen
Reserved for women with no withdrawal bleeding or breakthrough bleeding
Name some contraceptive oestrogen components?
Ethinylestradiol, estradiol, mestranol
Name some contraceptive progestogen components?
Desogestrel, drospirenone, gestodene, levonornogestrel
Which progestogen is a derivative of spironolactone?
Drosperinone - monitor for hyperkalaemia