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Contraception Matthew Dowling 10/9/14
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Contents Oral Contraceptives: Emergency Contraception Types
Method of action Contraindications (MEC) Emergency Contraception
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Oral Contraceptives 2 main types: Combined oral contraceptives
(Progestogen and Oestrogen) Progestogen-only contraceptives (Mini-pill or POP)
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Combined oral contraceptives
One of most commonly used methods of contraceptives Currently available CHCs contain a synthetic oestrogen (ethinylestradiol or mestranol) and a progestogen Eg: Microgynon (30microg ethinylestradiol and 150mg levonogestrol) Loestrin (20 microg ethinylestradiol and 1mg noresthisterone) Dianette (25mcg ethinylestrodiol and 2mg cyproterone acetate) Yasmin (30microg ethinylestradiol and 3mg drospironone) Logynon Binovum Brevinor Cilest
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How do they work? Primarily by preventing ovulation through inhibition of hypothalamo-ovarian-pituitary axis Also cervical mucus Endometrial changes
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How are they taken? 28 pills (21 active 7 placebo)
First 7 inhibit ovulation Next 14 maintain anovulation
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When to start? Any time as long as sure not pregnant
Immediate contraceptive cover if started on day 1-5 of cycle If starting after day 5, extra protection required for 7 days
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Question A 25 yr old woman phones for advice. She has missed two pills in a row. Today she would be taking the 19th pill of the packet. There have been no other missed pills during the packet. She has been having regular UPSI during the weekend. You have already told her to take two of her pills as soon as possible. What next? Needs EC + use condoms for 7 days + skip the break Use condoms for 7 days + skip the break Needs EC + skip the 7 day break Needs EC + use condoms for 7 days Use condoms for next 7 days
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What to do if you miss a pill...
1 pill missed Take asap then carry on, no additional protection required 2 or more missed pills Take latest missed pill then use extra protection for next 7 days In week 1- consider EC if had UPSI in the last 7 days or pill free period In week 2- No need for EC (as long as has had 7 consecutive pills in 1st week) In week 3- No need for EC. Finish the pills in her current pack, skip the break
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Question A 25 yr old woman phones for advice. She has missed two pills in a row. Today she would be taking the 19th pill of the packet. There have been no other missed pills during the packet. She has been having regular UPSI during the weekend. You have already told her to take two of her pills as soon as possible. What next? Needs EC + use condoms for 7 days +skip the break Use condoms for 7 days + skip the break Needs EC +skip the 7 day break Needs EC + use condoms for 7 days Use condoms for next 7 days
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Question A 25 yr old woman phones for advice. She has missed two pills in a row. Today she would be taking the 19th pill of the packet. There have been no other missed pills during the packet. She has been having regular UPSI during the weekend. You have already told her to take two of her pills as soon as possible. What next? Needs EC + use condoms for 7 days +skip the break Use condoms for 7 days + skip the break <<<<<<<<<<<<<<<< Needs EC +skip the 7 day break Needs EC + use condoms for 7 days Use condoms for next 7 days
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Who can’t have the COCP Always refer to the UKMEC guidelines:
( Available from FSRH at All medical conditions and contraceptive options placed in a UMEC category 1 – 4 depending on their safety.
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UKMEC definitions: A condition for which there is no restriction for the use of the contraceptive method A condition where the advantages of using the method generally outweigh the theoretical or proven risks A condition where the theoretical or proven risks usually outweigh the advantages of using the method. The provision of a method requires expert clinical judgement and/or referral to a specialist contraceptive provider, since use of the method is not usually recommended unless other more appropriate methods are not available or not acceptable A condition which represents an unacceptable health risk if the contraceptive method is used
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Question: Which one of the following is not an absolute contraindication to combine oral contraceptive use? BP 165/100 Continuous use before, during and after a total knee replacement Breastfeeding a 10 week old baby DVT 9 years ago A 39 yr old who smokes 20/day
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UKMEC 3 Older than 35 and smoking <15 a day BMI>35
Migraine without aura Family history of VTE (in a 1st degree relative <45yrs old) Controlled hypertension Immobility; eg wheelchair use Breastfeeding (6 weeks- 6 month post partum)
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UKMEC 4 Age >35 and smoking >15 cigarettes a day
Migraine with aura History of VTE or thrombogenic mutations History of stroke/CVA or IHD Breastfeeding <6 weeks post partum Uncontrolled hypertension Breast cancer Major surgery with prolonged immobilisation DM diagnosed >20yrs (can be 3 or 4)
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Question Which one of the following is not an absolute contraindication to combine oral contraceptive use? BP 165/100 Continuous use before, during and after a total knee replacement Breastfeeding a 10 week old baby DVT 9 years ago A 39 yr old who smokes 20/day
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Question Which one of the following is not an absolute contraindication to combine oral contraceptive use? BP 165/100 Continuous use before, during and after a total knee replacement Breastfeeding a 10 week old baby <<<<<<<<<<<< DVT 9 years ago A 39 yr old who smokes 20/day
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Question A 19 yr old female has been prescribed a 7 day course of penicillin for tonsillitis. She is currently taking microgynon 30. What would you advise? Use condoms for 7 days only if abx course overlaps with pill free period Use condoms for 14 days No need for extra protection Use condoms for 21 days Use condoms for 7 days
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Interactions: Antibiotics: Anti-epileptics: Enzyme inducing drugs:
No problems unless an enzyme inducer (eg Rifampicin) Anti-epileptics: May reduce effectiveness of lamotrigine Enzyme inducing drugs: If very potent, cannot have COCP May affect efficacy of COCP Can have higher dosage regime/tricycle and have shorter break NB St Johns Wort
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Question A 19 yr old female has been prescribed a 7 day course of penicillin for tonsillitis. She is currently taking microgynon 30. What would you advise? Use condoms for 7 days only if abx course overlaps with pill free period Use condoms for 14 days No need for extra protection Use condoms for 21 days Use condoms for 7 days
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Question A 19 yr old female has been prescribed a 7 day course of penicillin for tonsillitis. She is currently taking microgynon 30. What would you advise? Use condoms for 7 days only if abx course overlaps with pill free period Use condoms for 14 days No need for extra protection <<<<<<<<<<<<<<<<<<<<< Use condoms for 21 days Use condoms for 7 days
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POP
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Progestogen Only Pill Contains Progestogen
Works primarily on cervical mucus and endometrial factors (except Cerazette which inhibits ovulation) Eg Cerazette (75 microg desogestrel) Femulen Micronor Norgeston Noriday
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Who can have it? UKMEC 3: Current IHD or CVA
Headaches (migraine with aura at any age) which develop while on POP Previous Breast Cancer Gestational trophoblastic disease Liver disease UKMEC 4: Breast cancer (current)
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Question A 29 yr old female presents having missed her Micronor (POP) today. She normally takes it at 0830 and it is now What advice should be given? Take missed pill now and no further action EC should be offered Take missed pill now and advise condom use until pill taking reestablished for 48hr Take missed pill now and omit pill break Perform a pregnancy test
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How to take it Same time every day, no pill free break
Start up to and including day 5 of cycle with no additional contraception needed Start at any other time but use additional contraception for 48hr (if not pregnant) Postpartum- initiate at any time, requires extra protection if after day 21 Is switching from COCP, protection is immediate if started from end of COCP packet
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Missed pills… Classed as: Take missed pill as soon as remembered
>3hr late in traditional POP >12hr late with Cerazette Take missed pill as soon as remembered Take next pill at usual time Use additional contraception for 2 days EC if UPSI occurs during these 2 days
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Question A 29 yr old female presents having missed her Micronor (POP) today. She normally takes it at 0830 and it is now What advice should be given? Take missed pill now and no further action EC should be offered Take missed pill now and advise condom use until pill taking reestablished for 48hr Take missed pill now and omit pill break Perform a pregnancy test
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Question A 29 yr old female presents having missed her Micronor (POP) today. She normally takes it at 0830 and it is now What advice should be given? Take missed pill now and no further action <<<<<<<<<<<< EC should be offered Take missed pill now and advise condom use until pill taking reestablished for 48hr Take missed pill now and omit pill break Perform a pregnancy test
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Disadvantages? Altered bleeding patterns
Weight change (no good evidence of causal association) Depression and mood change (no cause evidence)
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EMERgency Contraception
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Emergency Contraception
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References Passmedicine
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