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SALONPAS PAIN RELIEF PATCH MEDICATED PLASTER

Active substance(s): LEVOMENTHOL / METHYL SALICYLATE

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SUMMARY OF PRODUCT CHARACTERISTICS
1

NAME OF THE MEDICINAL PRODUCT
Salonpas Pain Relief Patch, 105 mg/31.5 mg
Medicated Plaster
Methyl Salicylate / Levomenthol

2

QUALITATIVE AND QUANTITATIVE COMPOSITION
Each medicated plaster contains 10% Methyl salicylate (105mg) and 3%
Levomenthol (31.5mg).
For the full list of excipients, see section 6.1.

3

PHARMACEUTICAL FORM
Medicated plaster for topical application.
Light brown coloured 70 cm2 medicated plaster, with a flexible backing layer.
The adhesive side is covered by a plastic film

4

CLINICAL PARTICULARS

4.1

Therapeutic indications
For the symptomatic relief of pain of muscles and joints associated with
strains and sprains.

4.2

Posology and method of administration
Apply one plaster to the affected area and leave in place for up to 8 to 12
hours. If pain recurs 8 to 12 hours after applying the first plaster, a second
plaster can be applied. Only use one plaster at a time. Do not use more than 2
plasters per day. Do not use for more than 3 days in a row.
Salonpas Pain Relief Patch is not recommended for use in children and
adolescents under 18 years of age due to insufficient data on safety and
efficacy.

4.3

Contraindications
Hypersensitivity to the active substance, to non-steroidal anti-inflammatory
drugs (NSAIDs) or to any of the excipients listed in section 6.1.
The medicated plaster should not be used in the following cases:

• Patients in whom substances with a similar mechanism of action (e.g.
acetylsalicylic acid or NSAIDs cause attacks of asthma, bronchospasm or
acute rhinitis, or cause nasal polyps, urticaria or angioedema)
• Severe heart failure
• Severe hepatic or renal dysfunction
• Gastrointestinal bleeding or other active bleeding or bleeding disorders
• Third trimester of pregnancy (see Section 4.6)
The plaster should not be used on open wounds or on skin with pathological
changes such as eczema, acne, dermatitis, inflammation or infection of any
nature or on mucous membrane of body orifices, or should not come into
contact with the eyes.

4.4

Special warnings and precautions for use
Analgesics, antipyretics and non-steroidal anti-inflammatory drugs (NSAIDs)
can cause potentially serious hypersensitivity reactions, including anaphylactic
reactions, even in subjects with no previous exposure to this type of drug.
The systemic bioavailability of the active substances applied via the
transdermal route is significantly lower than that following oral
administration. However it is not possible to exclude completely the onset of
systemic side effects.
Administer with caution to patients with allergic conditions or a history of
allergy.
Patients currently suffering from or with a previous history of gastrointestinal
disease should be carefully monitored for digestive disorders, in particular
gastrointestinal bleeding. In the rare cases where gastrointestinal bleeding or
ulceration occur in receiving treatment with methyl salicylate or levomenthol,
treatment should be discontinued immediately.
Salonpas Pain Relief Patch is not recommended for use in patients with active
or suspected gastrointestinal ulcer or a history of gastrointestinal ulcer or
chronic dyspepsia.
Salonpas Pain Relief Patch is not recommended for use in patients with a
history of bronchial asthma.
Salonpas Pain Relief Patch is not recommended for use in children and
adolescents under 18 years of age due to insufficient data on safety and
efficacy.
Prolonged or repeated use of the product can cause sensitisation. Treatment
must be stopped if hypersensitivity reactions occur.

4.5

Interaction with other medicinal products and other forms of interaction
The low systemic bioavailability of the active substances from Salonpas Pain
Relief Patch means that interaction with other medicines is unlikely.
Although no adequately controlled interaction studies have been undertaken,
in reviewing the literature it is possible that excessive use of topical salicylates

may increase the effect of coumarin anticoagulants. It is therefore advisable
that caution be exercised with patients who are taking coumarin anticoagulants
such as warfarin.
Revulsives (anti-irritants) and analgesics act synergistically.

4.6

Fertility, pregnancy and lactation
Fertility
There have been no reports of effects of Salonpas Pain Relief Patch on
fertility. However, as the use of methyl salicylate may impair female fertility,
use of this product is not recommended in women attempting to conceive.
Pregnancy
During the first and second trimester:
The safety of Salonpas Pain Relief Patch in pregnant women has not been
established. Therefore, the use of Salonpas Pain Relief Patch during the first
and second trimester of pregnancy should be avoided.
During the third trimester:
During the third trimester of pregnancy, all prostaglandin synthetase inhibitors
may induce cardiopulmonary and renal toxicity in the foetus. At the end of the
pregnancy, prolonged bleeding time in both mother and child may occur.
Therefore, Salonpas Pain Relief Patch is contraindicated during the last
trimester of pregnancy (see section 4.3).
Lactation
It is not known whether cutaneous administration of methyl salicylate could
result in sufficient systemic absorption to produce detectable quantities in
breast milk. A decision on whether to continue/discontinue breast-feeding or
to continue/discontinue therapy with Salonpas Pain Relief Patch should be
made taking into account the benefit of breast-feeding to the child and the
benefit of Salonpas Pain Relief Patch therapy to the woman.

4.7

Effects on ability to drive and use machines
There are none described.

4.8

Undesirable effects
Localised skin reactions have been reported such as erythema, pain, pruritus,
warmth, rash and discolouration.
The prolonged use of products for topical administration may cause
hypersensitivity phenomena. In such case, the treatment should be
discontinued and a suitable alternative therapy should be initiated.
Serious adverse reaction did not occur in clinical trials carried out with
Salonpas Pain Relief Patch.
639 patients were treated with Salonpas Pain Relief Patch in clinical trials. The
following adverse drug reactions were reported in the following table:

Tabulated list of adverse events
The following undesirable effects were assessed to be treatment-related and
are classified according to the following convention: very common (≥1/10);
common (≥1/100 to <1/10); uncommon (≥1/1,000 to <1/100); rare (≥1/10,000
to <1/1,000); and very rare (<1/10,000). Within each frequency grouping,
undesirable effects are presented in order of decreasing seriousness.
General disorders and
Very common: Application site erythema
administration site conditions Common: Application site pruritus, pain and
warmth
Uncommon: Application site rash and
discolouration
Nervous system disorders

Common: Headache

Skin and subcutaneous tissue
disorders

Uncommon: Pruritus and rash

Ear and labyrinth

Uncommon: Tinnitus

The majority of the reactions that occurred in allergic/asthmatic patients
and/or in patients with known hypersensitivity to NSAIDs have been serious.
Reporting of suspected adverse reactions:
Reporting suspected adverse reactions after authorisation of the medicinal
product is important. It allows continued monitoring of the benefit/risk balance
of the medicinal product. Healthcare professionals are asked to report any
suspected adverse reactions via the Yellow Card Scheme at:
http://yellowcard.mhra.gov.uk

4.9

Overdose
No case of overdose has been reported.
In the event of overdose with obvious clinical manifestations, the treatment
should be stopped immediately and symptomatic treatment should be initiated
immediately and the usual appropriate emergency measures should be applied.

5

PHARMACOLOGICAL PROPERTIES

5.1

Pharmacodynamic properties
Pharmacodynamic category: Topical products for joints and muscular pain
ATC code: M02AC
Salonpas Pain Relief Patch is an anti-inflammatory and analgesic product. It
improves the circulation in peripheral blood vessels, thus reducing
inflammation and relieving pain.
Methyl salicylate is hydrolysed to salicylic acid. Its pharmacological actions
are considered to be those of salicylic acid, and its mechanism of action is due
to an inhibitory effect on prostaglandin biosynthesis. Methyl salicylate is also
considered to have a counterirritant or ruberfacient effect.

Levomenthol also acts as a counterirritant, and has been reported to have
analgesic effects, including local anaesthetic actions, secondary to the
activation of endogenous opioid receptors.

5.2

Pharmacokinetic properties
Methyl salicylate and levomenthol can be applied topically in effective
concentrations, but with very low plasma concentrations of drug. Therapeutic
levels in the affected tissues provide relief from pain and inflammation.
Studies have shown methyl salicylate is absorbed through the skin and is
extensively metabolised to salicylic acid after topical application where it
exerts its therapeutic action and small amounts are absorbed systemically
where the salicylic acid is excreted renally, primarily as salicylic acid but also
related metabolites. From a pharmacokinetic study in 18 healthy male
volunteers who each received six Salonpas Pain Relief patches daily (2
patches applied for 8 hours three times daily) for five consecutive days, the
baseline adjusted absorption kinetics for Cmax for salicylic acid was 613 and
1426ng/ml on days 1 and 5 respectively. The Tmax values were 3.24 to 3.80 hr.
The mean adjusted half-life was 2.7 to 4.29 hr.
Studies with levomenthol have shown it is rapidly absorbed into the skin
exerting its therapeutic action and small amounts are absorbed systemically
where it is rapidly metabolised and excreted in the urine and bile as a
glucuronide. From the pharmacokinetic study using a two plasters repeated
application for five consecutive days, the baseline adjusted absorption kinetics
for Cmax for menthol was 5.06 and 19.8ng/ml on days 1 and 5 respectively.
The Tmax was 2.92 and 3.39 hr.

5.3

Preclinical safety data
No additional preclinical data of relevance to the prescriber.

6

PHARMACEUTICAL PARTICULARS

6.1

List of excipients
Alicyclic saturated hydrocarbon resin
Liquid paraffin
Polyisobutylene
Styrene-isoprene-styrene block copolymer
Synthetic aluminium silicate
Backing cloth
Plastic film

6.2

Incompatibilities
None reported.

6.3

Shelf life
3 (three) years
After the sachet has been first opened: 3 months, when resealed after opening see section 6.4.

6.4

Special precautions for storage
Store the medicinal product below 25ºC in the original package in order to
protect from light.
Each time a plaster is take out of the package, carefully re-seal the open side
of the sachet in order to protect the remainder of the plasters.

6.5

Nature and contents of container
Carton box contains a (one) sachet formed from cellophane/ PE/ aluminium/
PE laminate.
Each sachet contains 3 or 5 plasters.

6.6

Special precautions for disposal
No special requirements for disposal.

7

MARKETING AUTHORISATION HOLDER
Hisamitsu UK Limited
5 Chancery Lane, London WC2A 1LG, UK
Telephone: +44 (0)20 7406 7410
Telefax: +44 (0)20 7406 7411

8

MARKETING AUTHORISATION NUMBER(S)
PL 23168/0001

9

DATE OF FIRST AUTHORISATION/RENEWAL OF THE
AUTHORISATION
28/09/2011

10

DATE OF REVISION OF THE TEXT
07/12/2015

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Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.

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