Introduction to contraception

Consult the most recent National Contraception Clinical Guidelines (especially in women with medical conditions).

Women should decide their own family planning method, in consultation with their health care professional,taking into consideration safety, efficacy, acceptability, and access. Always obtain a complete medical and sexual history and perform an appropriate physical examination in order to ensure that there are no contra-indications to using a particular method. Always exclude pregnancy before commencing contraception.

Contraceptive methods


Hormonal contraception and IUCDs do not prevent sexually transmitted infections (STIs), including HIV. Dual protection i.e. the use of a condom in combination with another contraceptive method is recommended to reduce the risk of STIs, including HIV.


Contraceptive method Advantages Disadvantages
Copper IUD
(see Intrauterine device )
- Suitable for most
women, including
nulliparous women.
- Provides long-term
protection i.e. 5 years.
- Convenient, does not
require frequent follow up.
- Works immediately on
insertion.
- Non-hormonal therefore
no interaction with other
medication and no
hormonal side effects
- Fertility returns on
removal of IUCD in
women of child-bearing
age.
- Some discomfort or
cramping during and
following insertion.
- IUCD must be inserted
or removed by a
trained health care professional.
- Should not be used in women
with menorrhagia, active
pelvic inflammatory disease (PID),
purulent cervicitis, unexplained
uterine bleeding, cervical
and endometrial cancers or
other uterine abnormalities.
Levonorgestrel Intrauterine device (LNG-IUD)
(See: Levonorgestrel Intra-uterine Device (LNG-IUD)
- Suitable for most women, including nulliparous
women.
- Provides long-term protection (up to 5 years).
- Convenient, does not require frequent follow up.
- Works immediately on insertion.
- Immediate return to fertility on removal.
- Reduces menstrual cramps, heavy menstrual bleeding,
and symptoms of endometriosis.
- Can be inserted postpartum (within 48 hours after delivery).



LoE:II[1]
- Bleeding changes are common but not harmful.
Typically, lighter and fewer days of bleeding, or infrequent or irregular
bleeding.
- LNG-IUDĀ  must
be inserted or removed by a trained health care professional.
- Should not be used in women with active PID.



LoE:III[2]
Hormonal subdermal: progestin-only
implant (see Subdermal Implant)
- Provides long-term protection i.e. 3 years
(etonogestrel) or 5 years (levonorgestrel).
- Convenient, does not require frequent follow up.
- Can be used in women >35 years who are obese,
who smoke, or who have diabetes, hypertension, or a history of venous
thromboembolism.
- Fertility returns on removal of implant in women of
child-bearing age.
- Frequent bleeding irregularities.
- Implant must be inserted or removed by a trained
health care professional under aseptic conditions to prevent infection.
- Incorrect insertion and removal technique may
result in complications.
Hormonal injectable:
progestin-only
(see Hormonal, injectable )
- Daily patient adherence
is not required.
- Long-acting i.e. given
every 8 or 12 weeks
- Interactions with other
medicines do not lower
contraceptive effect.
- Can be used postpartum.
- Can be used in women
>35 years who are obese,
who smoke, or who have
diabetes, hypertension,
or a history of venous
thromboemolism.
- Delayed return of fertility,
of up to 9 months, after
last injection.
- Frequent bleeding
irregularities (irregular,
prolonged and/or heavy
bleeding, or
amenorrhoea)
LoE: III[3]
Hormonal oral:
progestin-only
(see Hormonal, oral )
- Fertility returns 3
months of discontinuing
the pill.
- Can be used postpartum.
- Can be used in women
> 35 years who are
obese, who smoke, or who have
diabetes, hypertension, or
a history of venous
thromboemolism.
- Daily adherence is
required.
- Interactions with other
medicines can lower
contraceptive effect.
- Lower efficacy compared with
COC.
- Frequent bleeding
irregularities.
Hormonal oral:
combined oral
contraceptive (COC)
(see Hormonal, oral )
- Non-contraceptive
benefits, e.g.: alleviation
of dysmenorrhoea,
premenstrual syndrome
and menorrhagia.
- Fertility returns within 3
months of discontinuing
COC.
- Daily adherence
is required.
- Interactions
with other medicines can
lower contraceptive effect.
- Cannot be used in women
with venous thrombo-embolic disease.
- Cannot be used
immediately postpartum.
Barrier: male and
female condoms
(see Barrier methods )
- Protects against STIs,
including HIV.
- Possibility of breakage
or slipping off.
- Possible allergic reaction
to latex.
- Lower efficacy than other
contraceptive methods
therefore advised as dual
contraception.

(Refer to the most recent SAHPRA registered package inserts for detailed information).

LoEII [1]

LoE:III[2]

LoE:III[3]

Effectiveness of family planning methods

Rates of unintended pregnancies per 100 women:

Contraceptive
method
Failure rate
in 1st year (%)
Failure rate
in 1st year (%)
% of women
continuing
use at one year
Consistent and
correct use
As typically
used
% of women
continuing
use at one year
Copper IUD 0.6 0.8 78
LNG-IUD 0.2 0.2 80
Progestin-only
subdermal implant
0.05 0.05 84
Progestin-only
injectable
0.3 3 56
Progestin-only
oral pill (not
breastfeeding)
0.3 8 67
Progestin-only
oral pill (during
breastfeeding)
0.5 1 n/a
Combined oral
contraceptive
(COC) pill
0.3 3 67
Barrier: female
condoms
5 21 4
Barrier: male
condoms
2 15 43
Sterilisation:
male - vasectomy
0.1 0.15 100
Sterilisation:
female - tubal
ligation
0.5 0.5 100
No method 85 85 n/a

Key:

  • 0-0.9: very effective
  • 10-25: moderately effective
  • 1-9: effective
  • 26-32: less effective

LOEIII [4]