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SUMMARY OF PRODUCT CHARACTERISTICS

1 NAME OF THE MEDICINAL PRODUCT

Nefopam Hydrochloride 30mg Film-coated Tablets

2 QUALITATIVE AND QUANTITATIVE COMPOSITION

Each coated tablet contains Nefopam Hydrochloride 30 mg. For a full list of excipients, see section 6.1.

3 PHARMACEUTICAL FORM

White to off white, round, biconvex film coated tablets with 'NFP' debossed on one side and plain on other side.

4    CLINICAL PARTICULARS

4.1    Therapeutic indications

Nefopam is indicated for the relief of acute and chronic pain, including post-operative pain, dental pain, musculo-skeletal pain, acute traumatic pain and cancer pain.

4.2 Posology and method of administration

ADULTS: Dosage may range from 1 to 3 tablets three times daily depending on response. The recommended starting dosage is 2 tablets three times daily.

ELDERLY: Elderly patients may require reduced dosage due to slower metabolism.

It is strongly recommended that the starting dose does not exceed one tablet three times daily as the elderly appear more susceptible to; in particular, the CNS side effects of nefopam and some cases of hallucinations and confusion have been reported in this age group.

CHILDREN: The safety and efficacy of nefopam has not been evaluated in children under 12 years, no dosage recommendation can be given for patients under 12 years.

Patients with end stage renal disease might experience increased serum peak concentrations during treatment with nefopam. In order to avoid that, it is recommended the daily dose should be reduced not only for the elderly, but also for patients with terminal renal insufficiency.

4.3 Contraindications

Nefopam is contra-indicated in patients with a history of convulsive disorders and should not be given to patients taking mono-amine-oxidase (MAO) inhibitors. Nefopam is contraindicated in patient with Known hypersensitivity to any of the ingredients.

4.4 Special warnings and precautions for use

The side effects of Nefopam may be additive to those of other agents with anticholinergic or sympathomimetic activity. It should not be used in the treatment of myocardial infarction since there is no clinical experience in this indication. Hepatic and renal insufficiency may interfere with the metabolism and excretion of nefopam. Nefopam should be used with caution in patients with, or at risk of, urinary retention. Rarely a temporary, harmless pink discolouration of the urine has occurred.

4.5 Interaction with other medicinal products and other forms of interaction

Caution should be exercised when nefopam is administered concurrently with tricyclic antidepressants.

It should be noted that nefopam may interfere with some screening tests for benzodiazepines and opioids. These tests for benzodiazepines and opioids may give false positive results for patients taking Nefopam.

4.6 Fertility, Pregnancy and lactation

There is no evidence as to the drug safety in human pregnancy, nor is there evidence from animal work that it is free from hazard. Avoid in pregnancy unless there is no safer treatment.

4.7 Effects on ability to drive and use machines

Nefopam may cause drowsiness. If affected do not drive or operate machinery.

4.8 Undesirable effects

Nausea, nervousness, dry mouth and light-headedness, urinary retention, hypotension, syncope, palpitations, gastrointestinal disturbances (including abdominal pain and diarrhoea), dizziness, paraesthesia, convulsions, tremor, confusion, hallucination, angioedema, and allergic reactions may occur. Less frequently, anaphylactic reactions, vomiting, blurred vision, drowsiness, sweating, insomnia, headache and tachycardia have been reported.

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: www.mhra.gov.uk/yellowcard.

4.9 Overdose

The clinical pattern of nefopam toxicity in overdose is on the neurological (convulsions, hallucinations and agitation) and cardiovascular systems (tachycardia with a hyperdynamic circulation). Routine supportive measures should be taken and prompt removal of ingested drug by gastric Lavage or induced vomiting with Syrup of Ipecacuanha should be carried out. Oral administration of activated charcoal may help prevent absorption.

Convulsions and hallucinations should be controlled (eg with intravenously or rectally administered diazepam). Beta-adrenergic blockers may help control the cardiovascular complications.

5 PHARMACOLOGICAL PROPERTIES

5.1 Pharmacodynamic properties

ATC code: N02BG06

Pharmacotherapeutic group: Other Analgesics and antipyretics

Nefopam is a potent and rapidly-acting analgesic. It is totally distinct from other centrally-acting analgesics such as morphine, codeine, pentazocine and propoxyphene.

Unlike the narcotic agents, Nefopam has been shown not to cause respiratory depression. There is no evidence from pre-clinical research of habituation occurring with Nefopam.

5.2 Pharmacokinetic properties

Nefopam is absorbed from the gastro-intestinal tract. Peak plasma concentrations occur about 1-3 hours after oral administration. About 73% is bound to plasma proteins. It has an elimination half-life of about 4 hours. It is extensively metabolised and excreted mainly in urine. Less than 5% of a dose is excreted unchanged in the urine. About 8% of a dose is excreted via the faeces.

5.3 Preclinical safety data

Not applicable

6    PHARMACEUTICAL PARTICULARS

6.1    List of excipients

Core Tablet

Calcium Hydrogen Phosphate Dihydrate

Cellulose Microcrystalline

Starch Pregelatinized

Hydrogenated Vegetable Oil

Silica, Colloidal anhydrous

Magnesium Stearate

Coating

Hypromellose (HPMC 2910),

Titanium Dioxide (E171),

Macrogol/PEG

6.2 Incompatibilities

None known

10 DATE OF REVISION OF THE TEXT

16/04/2015