DERMATOLOGICAL DRUGS›ASTRINGENTS
Aluminium chloride hexahydrate
lINDICATIONS AND DOSE
Hyperhidrosis affecting axillae, hands or feet
▶TO THE SKIN
▶Child:Apply once daily, apply liquid formulation at
night to dry skin, wash off the following morning,
reduce frequency as condition improves—do not bathe
immediately before use
Hyperhidrosis|Bromidrosis|Intertrigo|Prevention of
tinea pedis and related conditions
▶TO THE SKIN
▶Child:Apply powder to dry skin
lUNLICENSED USELicensed for use in children (age range
not specified by manufacturer).
lCAUTIONSAvoid contact with eyes.avoid contact with
mucous membranes.avoid use on broken or irritated skin.
do not shave axillae or use depilatories within 12 hours of
application
lSIDE-EFFECTS
▶Frequency not knownSkin reactions
lPATIENT AND CARER ADVICEAvoid contact with clothing.
lEXCEPTIONS TO LEGAL CATEGORYA 30 mL pack of
aluminium chloride hexahydrate 20 % is on sale to the
public.
lMEDICINAL FORMS
There can be variation in the licensing of different medicines
containing the same drug.
Liquid
CAUTIONARY AND ADVISORY LABELS 15
▶Aluminium chloride hexahydrate (Non-proprietary)
Aluminium chloride 200 mg per 1 mlAluminium chloride 20 %
solution| 60 mlpsDT = £ 2. 51
▶Anhydrol(Dermal Laboratories Ltd)
Aluminium chloride 200 mg per 1 mlAnhydrol Forte 20 % solution
| 60 mlp£ 2. 51 DT = £ 2. 51
▶Driclor(GlaxoSmithKline Consumer Healthcare)
Aluminium chloride 200 mg per 1 mlDriclor 20 % solution|
75 mlp£ 3. 01 DT = £ 3. 01
5 Pruritus
Topical local antipruritics
Overview
Pruritusmay be caused by systemic disease (such as
obstructive jaundice, endocrine disease, chronic renal
disease, iron deficiency, and certain malignant diseases),
skin disease (such as eczema, psoriasis, urticaria, and
scabies), drug hypersensitivity, or as a side-effect of opioid
analgesics. Where possible, the underlying cause should be
treated. Local antipruritics have a role in the treatment of
pruritus in palliative care. Pruritus caused by cholestasis
generally requires a bile acid sequestrant.
Anemollientmay be of value where the pruritus is
associated with dry skin. Preparations containing calamine
or crotamiton below are sometimes used but are of uncertain
value.
A topical preparation containing doxepin 5 %p. 753 is
licensed for the relief of pruritus in eczema in children over
12 years; it can cause drowsiness and there may be a risk of
sensitisation.
Topical antihistamines and local anaesthetics are only
marginally effective and occasionally cause sensitisation. For
insect stingsandinsect bites, a short course of a topical
corticosteroid is appropriate. Short-term treatment with a
sedating antihistaminemay help in insect stings and in
intractable pruritus where sedation is desirable. Calamine
preparations are of little value for the treatment of insect
stings or bites.
Inpruritus ani, the underlying cause such as faecal soiling,
eczema, psoriasis, or helminth infection should be treated.
Other drugs used for PruritusAlimemazine tartrate, p. 177.
Cetirizine hydrochloride, p. 174 .Chlorphenamine maleate,
p. 178 .Hydroxyzine hydrochloride, p. 179 .Levocetirizine
hydrochloride, p. 175
ANTIPRURITICS
Calamine with zinc oxide 31-Aug-2016
lINDICATIONS AND DOSE
Pruritus
▶TO THE SKIN
▶Child:(consult product literature)
IMPORTANT SAFETY INFORMATION
MHRA/CHM UPDATE (APRIL 2016): FIRE RISK WITH PARAFFIN-
BASED SKIN EMOLLIENTS ON DRESSINGS OR CLOTHING
See Emollient and barrier preparations p. 713.
lCONTRA-INDICATIONSAvoid application of preparations
containing zinc oxide prior to x-ray (zinc oxide may affect
outcome of x-ray)
lLESS SUITABLE FOR PRESCRIBINGLess suitable for
prescribing.
lMEDICINAL FORMS
There can be variation in the licensing of different medicines
containing the same drug.
Cream
CAUTIONARY AND ADVISORY LABELS 15
▶Calamine with zinc oxide (Non-proprietary)
Phenoxyethanol 5 mg per 1 gram, Zinc oxide 30 mg per 1 gram,
Calamine 40 mg per 1 gram, Cetomacrogol emulsifying wax
50 mg per 1 gram, Self-emulsifying glyceryl monostearate 50 mg
per 1 gram, Liquid paraffin 200 mg per 1 gramAqueous calamine
cream| 100 gramG£ 1. 43 DT = £ 1. 43
▶Cala Soothe(Ennogen Healthcare Ltd)
Phenoxyethanol 5 mg per 1 gram, Zinc oxide 30 mg per 1 gram,
Calamine 40 mg per 1 gram, Cetomacrogol emulsifying wax
50 mg per 1 gram, Self-emulsifying glyceryl monostearate 50 mg
per 1 gram, Liquid paraffin 200 mg per 1 gramCala Soothe cream
| 100 ml £ 18. 80
Liquid
▶Calamine with zinc oxide (Non-proprietary)
Phenol liquefied 5 mg per 1 ml, Sodium citrate 5 mg per 1 ml,
Bentonite 30 mg per 1 ml, Glycerol 50 mg per 1 ml, Zinc oxide
50 mg per 1 ml, Calamine 150 mg per 1 mlCalamine lotion|
200 mlG£ 0. 94 – £ 1. 09 DT = £ 1. 09
▶Cala Soothe(Ennogen Healthcare Ltd)
Phenol liquefied 5 mg per 1 ml, Sodium citrate 5 mg per 1 ml,
Bentonite 30 mg per 1 ml, Glycerol 50 mg per 1 ml, Zinc oxide
50 mg per 1 ml, Calamine 150 mg per 1 mlCala Soothe lotion|
200 ml £ 19. 50 DT = £ 1. 09
Crotamiton
lINDICATIONS AND DOSE
Pruritus (including pruritus after scabies)
▶TO THE SKIN
▶Child 1 month–2 years (on doctor’s advice only):Apply
once daily
▶Child 3–17 years:Apply 2 – 3 times a day
lCONTRA-INDICATIONSAcute exudative dermatoses
752 Pruritus BNFC 2018 – 2019
Skin
13