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Document: spc-doc_PL 12406-0028 change

• spc-doc_PL 06934-0182
• spc-doc_PL 12406-0028

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SUMMARY OF PRODUCT CHARACTERISTICS

1    NAME OF THE MEDICINAL PRODUCT

ZOMORPH 10 mg

2    QUALITATIVE AND QUANTITATIVE COMPOSITION

Morphine sulphate BP 10 mg

3    PHARMACEUTICAL FORM

Sustained-release capsules

4    CLINICAL PARTICULARS

4.1    Therapeutic indications

Severe chronic pain and/or pain resistant to other analgesics, in particular pain associated with cancer.

4.2    Posology and method of administration

Route of administration: orally.

As directed by a medical practitioner.

Recommended dosage

Adults: Recommended dosage is one capsule twice daily, at 12-hour intervals. Elderly: As with all narcotics, a reduction in dosage may be advisable in the elderly, as appropriate.

Children: Not recommended.

The capsules should not be chewed and should normally be swallowed whole. The dosage varies according to the severity of pain and the previous analgesic treatments received by the patient.

If the pain persists, or if the patient develops tolerance to morphine, the dosage may be increased by prescribing the 10, 30, 60, 100 and 200 mg capsules in various combinations or alone to obtain the desired relief Patients previously treated with immediate-release oral morphine should receive the same daily dose of sustained-release capsules, but in two divided doses at 12-hour intervals.

Patients previously treated with parenteral morphine should be given a sufficiently increased dosage to compensate for any reduction of the analgesic effect associated with oral administration. The dosage should be adjusted to meet the individual requirements of each patient.

For patients who cannot swallow the capsules, their contents can be administered directly in semi-solid food (puree, jam, yoghourt) or via gastric or gastrostomy tubes of a diameter of more than 16 F.G. with an open distal end or lateral pores. It is sufficient to rinse the tube with 30 to 50 ml of water.

4.3 Contraindications

Respiratory impairment, acute abdominal syndrome of unknown origin, severly impaired liver function, cranial trauma and raised intracranial pressure, convulsive state, acute alcoholic intoxication and delirium tremens, children, risk of paralytic ileus, known hypersensitivity to any of the ingredients contained in Zomorph, concurrent treatment with MAO (MAO = monoamine oxidase) inhibitors, or within two weeks of their use.

4.4 Special warnings and precautions for use

Caution should be exercised:

-    in elderly subjects, in patients with impaired hepatic and/or renal functions, in patients with hypothyroidism or hypoadrenalism, in patients in a state of shock or with asthma. The dose of Zomorph should be reduced, or its use should be avoided in cases of hepatic or renal failure.

-    in patients suffering from the following conditions: hypotension, convulsive disorders, dependence (severe withdrawal symptoms if withdrawn abruptly) and prostatic hypertrophy.

Urinary retention may occur in patients with urethral disease or prostatic hypertrophy.

Concomitant use of alcohol and Zomorph may increase the undesirable effects of Zomorph; concomitant use should be avoided.

4.5 Interaction with other medicinal products and other forms of interaction

As serious and sometimes fatal reactions have occurred following administration of pethidine to patients receiving monoamine oxidase inhibitors, pethidine and related drugs are contra-indicated in patients taking monoamine oxidase inhibitors or within 14 days of stopping such treatment; morphine and other opioid analgesics should be given with extreme caution.

The depressant effects of opioid analgesics are enhanced by depressants of the central nervous system such as alcohol, anaesthetics, antipsychotics, anxyolitics, hypnotics and sedatives, tricyclic antidepressants and phenothiazines.

Cyclizine may counteract the haemodynamic benefits of opioids.

Opioid analgesics with some antagonist activity, such as buprenorphine, butorphanol, nalbuphine or pentazocine may precipitate withdrawal symptoms in patients who have recently used pure agonists such as morphine. The actions of opioids may in turn affect the activities of other compounds. For instance, their gastro-intestinal effects may delay absorption as with mexiletine or may be counteractive as with metoclopramide, domperidone and possibly cisapride.

Plasma concentrations of morphine are possibly increased by ritonavir.

Alcohol may enhance the pharmacodynamic effects of Zomorph; concomitant use should be avoided.

4.6 Pregnancy and lactation

Since this product rapidly crosses the placental barrier, it should not be used during the second stage of labour or in premature delivery because of the risk of secondary respiratory depression in the newborn infant. If the mother is addicted, a withdrawal syndrome is observed in the newborn infant characterised by: convulsions, irritability, vomiting, increased mortality. As with all drugs, it is not advisable to administer it during pregnancy.

4.7 Effects on ability to drive and use machines

This medicine can impair cognitive function and can affect a patient’s ability to drive safely. This class of medicine is in the list of drugs included in regulations under 5a of the Road Traffic Act 1988. When prescribing this medicine, patients should be told:

•    The medicine is likely to affect your ability to drive

•    Do not drive until you know how the medicine affects you

•    It is an offence to drive while under the influence of this medicine

•    However, you would not be committing an offence (called ‘statutory defence’) if: o The medicine has been prescribed to treat a medical or dental problem and

o You have taken it according to the instructions given by the prescriber and in the information provided with the medicine and o It was not affecting your ability to drive safely

4.8 Undesirable effects

The most common side effects at usual doses are nausea, constipation, confusion and occasionally vomiting.

Other possible effects include: urticaria, pruritus, rashes, decreased libido or potency, mood changes, drowsiness, dry mouth, sweating, headache, facial flushing, vertigo, bradycardia, tachycardia, palpitations, postural hypotension, dysphoria, hypotension, hypothermia, miosis, dysuria, sedation or excitation (particularly in elderly subjects in whom delirium and hallucinations may occur), increased intracranial pressure which may aggravate existing cerebral disorders, increased pressure in the main bile duct and urinary retention in cases of prostatic adenoma or urethral stenosis. Mild respiratory depression occurs even at therapeutic doses. In the event of overdosage it may be severe, serious or even fatal. Physical and psychic dependence may appear after administration of therapeutic doses for periods of 1 to 2 weeks. Some cases of dependence have been observed after only 2 to 3 days.

Withdrawal syndrome: this may occur a few hours after withdrawal of a prolonged treatment, and is maximal between the 36^th and 72^nd hours.

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

Symptoms include respiratory depression, extreme miosis, hypotension, hypothermia, coma. Treatment is by intravenous injection of naloxone 0.4 mg, repeated every 2 to 3 minutes if necessary, or by an infusion of 2 mg in 500 ml of normal saline or 5 % dextrose (0.004 mg/ml).

In subjects dependent on morphine-like drugs, withdrawal symptoms may occur following injection of a high dose of naloxone. It should therefore be injected in gradually increasing doses to such subjects.

5.1 Pharmacodynamic properties

Morphine is an opioid analgesic. It acts mainly on the central nervous system and smooth muscle.

Morphine exerts an analgesic action, and affects psychomotor behaviour: depending on the dose administered, it induces sedation (> 1 cg) or, in some cases, excitation (< 1 cg). At high doses, greater than those required to produce analgesia, it induces somnolence and sleep.

5.2 Pharmacokinetic properties

Absorption

This is a sustained-release form, which makes possible twice-daily oral administration.

Morphine is immediately absorbed from the digestive tract following oral administration.

The maximum serum concentrations of morphine are obtained in 2 to 4 hours.

Distribution

The percentage of binding to plasma proteins after absorption is low (about 34 %). There is no clearly defined correlation between the plasma concentration of morphine and the analgesic effect.

Metabolism

A considerable quantity of morphine is metabolised by the liver to glucuronides, which undergo enterohepatic recirculation.

Excretion

The product is eliminated essentially in the urine, by glomerular filtration, mainly as glucuronides. A small amount (less than 10 %) is eliminated in the faeces.

Preclinical safety data

None stated.

6 PHARMACEUTICAL PARTICULARS

6.1 List of excipients

6.5 Nature and contents of container

Blister packs (aluminium/PVC). Boxes of 14, 30 and 60 capsules.

6.6 Special precautions for disposal

Not applicable.

7    MARKETING AUTHORISATION HOLDER

Archimedes Pharma UK Limited

Galabank Business Park

Galashiels

TD11QH

United Kingdom

8    MARKETING AUTHORISATION NUMBER(S)

PL 12406/0028

9 DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION

16/05/1995 / 15/09/2005

10 DATE OF REVISION OF THE TEXT

18/05/2015