BNF for Children (BNFC) 2018-2019

(singke) #1
Fungal infections
Vaginal fungal infections are not normally a problem in
younger girls but can occur in adolescents.Candidal vulvitis
can be treated locally with cream, but is almost invariably
associated with vaginal infection which should also be
treated.Vaginal candidiasis, rare in girls before puberty, can
be treated with antifungal pessaries or cream inserted high
into the vagina (including during menstruation), however,
these are not recommended for pre-pubertal girls and
treatment with an external cream may be more appropriate.
Single-dose intravaginal preparations offer an advantage
when compliance is a problem. Local irritation can occur on
application of vaginal antifungal products.
Imidazoledrugs (clotrimazole p. 515 , econazole nitrate
p. 515 , fenticonazole nitrate p. 516 , and miconazole p. 516 )
are effective against candida in short courses of 1 to 3 days
according to the preparation used; treatment can be
repeated if initial course fails to control symptoms or if
symptoms recur. Vaginal applications may be supplemented
with antifungal cream for vulvitis and to treat other
superficial sites of infection.
Oral treatment of vaginal infection withfluconazole p. 374
may be considered for girls post-puberty.

Vulvovaginal candidiasis in pregnancy
Vulvovaginal candidiasis is common during pregnancy and
can be treated with vaginal application of an imidazole (such
as clotrimazole), and a topical imidazole cream for vulvitis.
Pregnant women need a longer duration of treatment,
usually about 7 days, to clear the infection. There is limited
absorption of imidazoles from the skin and vagina. Oral
antifungal treatment should be avoided during pregnancy.

Recurrent vulvovaginal candidiasis
Recurrent vulvovaginal candidiasis is very rare in children,
but can occur if there are predisposing factors such as
antibacterial therapy, pregnancy, diabetes mellitus, or
possibly oral contraceptive use. Reservoirs of infection can
also lead to recontamination and should be treated; these
include other skin sites such as the digits, nail beds, and
umbilicus, as well as the gastro-intestinal tract and the
bladder. The sexual partner may also be the source of re-
infection and, if symptomatic, should be treated with a
topical imidazole cream at the same time.
Treatment against candida may need to be extended for
6 months in recurrent vulvovaginal candidiasis.

Other infections
Trichomonal infectionscommonly involve the lower urinary
tract as well as the genital system and need systemic
treatment with metronidazole p. 333 or tinidazole p. 335.
Bacterial infectionswith Gram-negative organisms are
particularly common in association with gynaecological
operations and trauma. Metronidazole is effective against
certain Gram-negative organisms, especiallyBacteroidesspp.
and can be used prophylactically in gynaecological surgery.
Clindamycin below cream and metronidazole gel are
indicated for bacterial vaginosis.
The antiviral drugs aciclovir p. 404 and valaciclovir p. 406
can be used in the treatment of genital infection due to
herpes simplex virus, the HSV type 2 being a major cause of
genital ulceration. They have a beneficial effect on virus
shedding and healing, generally giving relief from pain and
other symptoms.

4.1 Vaginal and vulval infections


4.1a Vaginal and vulval bacterial


infections


ANTIBACTERIALS›LINCOSAMIDES


Clindamycin


lINDICATIONS AND DOSE
DALACIN®2% CREAM
Bacterial vaginosis
▶BY VAGINA
▶Child: 1 applicatorful daily for 3 – 7 nights, dose to be
administered at night
DOSE EQUIVALENCE AND CONVERSION
▶ 1 applicatorful delivers a 5 g dose of clindamycin 2 %.

lUNLICENSED USENot licensed for use in children.
lCAUTIONSAvoid intravaginal preparations (particularly
those that require the use of an applicator) in young girls
who are not sexually active, unless there is no alternative
lINTERACTIONS→Appendix 1 : clindamycin
lSIDE-EFFECTS
▶Common or very commonSkin reactions
▶Frequency not knownConstipation.diarrhoea
(discontinue).dizziness.gastrointestinal discomfort.
headache.increased risk of infection.nausea.vertigo.
vomiting.vulvovaginal irritation
SIDE-EFFECTS, FURTHER INFORMATIONClindamycin 2 %
cream is poorly absorbed into the blood—low risk of
systemic effects.
lCONCEPTION AND CONTRACEPTIONDamages latex
condoms and diaphragms.

lMEDICINAL FORMS
There can be variation in the licensing of different medicines
containing the same drug.
Cream
EXCIPIENTS:May contain Benzyl alcohol, cetostearyl alcohol (including
cetyl and stearyl alcohol), polysorbates, propylene glycol
▶Dalacin(Pfizer Ltd)
Clindamycin (as Clindamycin phosphate) 20 mg per
1 gramDalacin 2 % cream| 40 gramP£ 10. 86 DT = £ 10. 86

ANTIBACTERIALS›NITROIMIDAZOLE
DERIVATIVES

Metronidazole
lDRUG ACTIONMetronidazole is an antimicrobial drug with
high activity against anaerobic bacteria and protozoa.

lINDICATIONS AND DOSE
Bacterial vaginosis
▶BY VAGINA USING VAGINAL GEL
▶Child: 1 applicatorful daily for 5 days, dose to be
administered at night

lUNLICENSED USEMetronidazole vaginal gel not licensed
for use in children under 18 years.
lCAUTIONSAvoid intravaginal preparations (particularly
those that require the use of an applicator) in young girls
who are not sexually active, unless there is no alternative.
not recommended during menstruation.some systemic
absorption may occur with vaginal gel
lINTERACTIONS→Appendix 1 : metronidazole

514 Vaginal and vulval conditions BNFC 2018 – 2019


Genito-urinary system

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