Adverse drug reactions are typical of full opioid agonists. Tolerance and dependence may occur (see section 4.4). Constipation may be prevented with an appropriate laxative. If nausea or vomiting are troublesome, oxycodone may be combined with an antiemetic.
The following frequency categories form the basis for classification of the undesirable effects:
| 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 |
| Very rare | < 1/10 000 |
| Not known | Cannot be estimated from the available data |
Immune system disorders:
Uncommon: hypersensitivity.
Frequency not known: anaphylactic reaction, anaphylactoid reaction.
Metabolism and nutrition disorders:
Common: decreased appetite.
Uncommon: dehydration.
Psychiatric disorders:
Common: anxiety, confusional state, depression, insomnia, nervousness, abnormal thinking, abnormal dreams.
Uncommon: agitation, affect lability, euphoric mood, hallucinations, decreased libido, drug dependence (see section 4.4), disorientation, mood altered, restlessness, dysphoria.
Frequency not known: aggression.
Nervous system disorders:
Very common: somnolence, dizziness, headache.
Common: tremor, lethargy, sedation.
Uncommon: amnesia, convulsion, hypertonia, hypoaesthesia, involuntary muscle contractions, speech disorder, syncope, paraesthesia, dysgeusia, hypotonia.
Frequency not known: hyperalgesia.
Eye disorders:
Uncommon: visual impairment, miosis.
Ear and labyrinth disorders:
Uncommon: vertigo.
Cardiac disorders:
Uncommon: palpitations (in the context of withdrawal syndrome), supraventricular tachycardia.
Vascular disorders:
Uncommon: vasodilatation, facial flushing.
Rare: hypotension, orthostatic hypotension.
Respiratory, thoracic and mediastinal disorders:
Common: dyspnoea, bronchospasm, cough decreased.
Uncommon: respiratory depression, hiccups.
Frequency not known: central sleep apnoea syndrome.
Gastrointestinal disorders:
Very common: constipation, nausea, vomiting.
Common: abdominal pain, diarrhoea, dry mouth, dyspepsia.
Uncommon: dysphagia, flatulence, eructation, ileus, gastritis.
Frequency not known: dental caries.
Hepatobiliary disorders:
Uncommon: increased hepatic enzymes, biliary colic.
Frequency not known: cholestasis, sphincter of Oddi dysfunction.
Skin and subcutaneous tissue disorders:
Very common: pruritus.
Common: rash, hyperhidrosis.
Uncommon: dry skin, exfoliative dermatitis.
Rare: urticaria.
Renal and urinary disorders:
Uncommon: urinary retention, ureteral spasm.
Reproductive system and breast disorders:
Uncommon: erectile dysfunction, hypogonadism.
Frequency not known: amenorrhoea.
General disorders and administration site conditions:
Common: asthenia, fatigue.
Uncommon: drug withdrawal syndrome, malaise, oedema, peripheral oedema, drug tolerance, thirst, pyrexia, chills.
Frequency not known: drug withdrawal syndrome neonatal.
Drug dependence
Repeated use of Oxycodone can lead to drug dependence, even at therapeutic doses. The risk of drug dependence may vary depending on a patient's individual risk factors, dosage, and duration of opioid treatment (see section 4.4).
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, Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.