EHC Flashcards
Why do we supply EHC via a PGD?
- No charge if exempt
- Improves access to EHC health advice
- Increases knowledge of availability of EHC from pharmacies
- Inc. knowledge of STI risks + refers those at risk
- Reduces no. of unwanted pregnancies
What is EHC?
Emergency Hormonal Contraception
- the measures taken after an act of UPSI to prevent pregnancy
What 3 types of EHC are licensed for use in the UK?
- Levonelle - progesterone oral contraception (1 OTC, 1 POM)
- EllaOne - ulipristal acetate oral contraception (POM)
- IUCD - provides EHC but also used as contraception after
What are the stages of the Ovarian Cycle?
- FSH increases = egg cells develop
- FSH decreases, Oestrogen increases + thickens endometrium
- LH and FSH increases dramatically, LH stimulating ovulation
- Ruptured follicle = corpus luteum (makes lots of progesterone)
- Thickened lining of uterus maintained + waits for ovum to implant
- Fertilisation doesn’t occur = corpus luteum degenerates
- loss of progesterone + decreased oestrogen stimulates new menstrual cycle
How long should Levonelle One-Step (1500mcg) be taken within UPSI?
72 hours (3 days) SOONER THE BETTER
How long should EllaOne (30mg) be taken within UPSI?
120 hours (5 days) SOONER THE BETTER
How long should IUCD be fitted within UPSI?
120 hours (5 days after)
OR
5 days after earliest time woman could have ovulated
What caution needs to be taken when taking Ulipristal (EllaOne)?
Decreases effectiveness of combined hormonal contraception. Should use extra protection for 7 days.
What is the mode of action of Levonelle?
- If taken before ovulation, delays by 5 to 7 days by stopping development of ovarian follicle.
- NOT effective once implantation has begun
- Effect at/just after ovulation unknown
What is the mode of action of EllaOne?
- Progestogen receptor modulator
- Works later in cycle than Levonelle
- Rate of pregnancy prevention @ same level for 5 days
What is the mode of action of an IUCD?
Prevents egg from implanting into the womb
Name some common interactions with both Levonelle and EllaOne.
Antiepileptics, Aprepitant, Bosentanm Efavirenz, Fosaprepitant, Griseofulvin, Lumacaftor, Modafinil, Nevirapine, Rifabutin, Rifampicin
What are the 4 inclusion criterias to supply levonelle on a PGD?
- UPSI in the last 72 hours
- Women > 16 yrs + <25 yrs (varied depending on PGD)
- Girls < 16 yrs but Fraser Competent
- Give consent to providing relevant clinical info.
Name the exclusion criteria for the supply of levonelle on a PGD?
- UPSI outside last 72 hours
- <16yrs, not fraser competent
- <12 yrs, MUST INFORM Child Protection Team
- Known hypersensitivity to levonorgestrel or any preparation excipient
- Known hereditary problems with galactose intolerance, Lapp lactase deficiency, or glucose-glucose malabsorption
- Pregnancy
- Had baby in last 3 weeks (EHC not required)
- Known Porphyria
- Taking Ciclosporin
- No valid consent given
Why would we not recommend an IUCD?
Uncomfortable + painful experience