Contraception Flashcards
(37 cards)
What are the two types of intrauterine products?
- copper intrauterine contraceptive device
2. levonorgestrel releasing intra-uterine device
Give 2 examples of IUS?
MIRENA
jaydess
How does the IUS work?
T shaped device
prevents endometrial thickening and thickens cervical mucus
List the benefits of the IUS?
99% effective
long term
redices dysmenorrhoea
List the limitations and possible side effects of the IUS?
frequent uterine bleeding and spotting painful insertion infection (but smaller risk than IUD) ectopic pregnancy dysfunctional ovarian cysts expulsion
How does the copper IUD work?
T shaped device made of copper
decreases sperm motility and survival
What are the benefits of IUD?
99% effective
long term - no worries regarding compliance
reversible
can be used as emergency contraception as effective immediately
When does the IUS start working as a contraceptive?
7 days after insertion
What are the limitations of IUD?
painful insertion heavier, longer, more painful periods infection - PID uterine perforation ectopic pregnancy expulsion
Name an example of the progestogen only subdermal implant
Nexplanon
How does the progestogen only implant work?
inhibit ovulation * by slowly releasing progestogen hormone etonogestrel
thicken mucus
thinning of the endometrium
prevent implantation
How/when is the progestogen only implant inserted?
inserted in the proximal non dominant arm, overlying the tricep
insert in day 1-5 of womens cycle - if not, need contraception
can be inserted immediately after termination of pregnancy
What are the benefits of the progestogen only implant?
highly effective
convenient
no oestrogen so can be used in patients with a history of VTE
What are the possible side effects with the progestogen only implant?
irregular/heavy bleeding *
‘progestogen effects” - headache, nausea breast pain
changes in weight
change in mood and libido
List the contraindications for the progestogen only implant?
ischaemic heart disease
breast cancer
liver cirrhosis or liver cancer
enzyme inducing drugs e.g. anti-epileptic, rifampicin
Name examples of progestogen only injectable contraceptives
Depo provera
savana press
noristerat
How do progestogen only injectable contraceptives work?
inhibits ovulation *
thickens cervical mucus
endometrial thinning
How are progestogen only injectable contraceptives administered?
IM injection every 12 weeks (14 weeks without precautions)
synthetic progesterone (medroxyprogesterone acetate) slowly released into systemic circulation
What are the benefits of progestogen only injectable contraceptives?
convenient
highly effective
decrease risk of ectopic pregnancy
decrease risk of endometrial cancer
What are the problems with progestogen only injectable?
not reversible potential delayed return to fertility - up to 1 year weight gain irregular bleeding increased risk of osteoporosis
Name examples of the oral progestogen only contraceptive pill
micronor
noriday
nogeston
femulen
What is the progestogen only contraceptive pill mechanism of action?
thickens cervical mucus*
transport of ovum delayed
endometrium unsuitable for implantation
What are the benefits of the progestogen only contraceptive pill?
effective when taken correctly
easily reversible
convenient
avoids oestrogen risks
What is the main side effect of the progestogen only contraceptive pill?
irregular, breakthrough bleeding *