More than 10% of patients with a combination of tramadol and paracetamol have nausea, dizziness and drowsiness.
The incidence of adverse reactions listed below was determined according to the following (World Health Organization classification): very often -> 1/10; often from> 1/100 to <1/10; infrequently - from> 1/1000 to <1/100; rarely - from> 1/10 000 to <1/1000; very rarely - from <1/10 000; the frequency is unknown (the frequency can not be estimated from the available data).
Disorders of the psyche: often confusion, mood changes, anxiety, nervousness, euphoria, sleep disturbances; infrequently - depression, hallucinations, nightmares; rarely - delirium, drug dependence; very rarely - abuse (postmarketing observations).
Impaired nervous system: very often - dizziness, drowsiness; often - headache, tremor; infrequent - involuntary contractions of muscles, paresthesia, amnesia; rarely - ataxia, convulsions, fainting, speech disorders.
Disorders from the side of the organ of vision: rarely - "blurred" vision, miosis, mydriasis.
Hearing disorders and labyrinthine disturbances: infrequent - ringing in the ears.
Heart Disease: infrequent - a feeling of palpitation, tachycardia, arrhythmia.
Vascular disorders: infrequently - arterial hypertension, hot flushes.
Disturbances from the respiratory system, organs of the thorax and mediastinum: infrequently - shortness of breath.
Disorders from the gastrointestinal tract: very often - nausea; often - vomiting, constipation, dry mouth, diarrhea, abdominal pain, indigestion, flatulence; infrequently - dysphagia. melena.
Disturbances from the skin and subcutaneous tissues: often - sweating, itchy skin; infrequently - skin reactions (rashes, hives).
Disorders from the kidneys and urinary tract: infrequently - albuminuria, disorders of urination (dysuria and urinary retention).
General disorders and disorders at the site of administration: infrequently - chills, pain in the chest.
Impact on laboratory and instrumental research results: infrequently - increased activity of transaminases; frequency is unknown - hypoglycemia.
The occurrence of the following undesirable reactions, known to be associated with the use of tramadol or paracetamol, can not be ruled out.
Tramadol:
- Orthostatic hypotension, bradycardia, collapse;
- a change in the warfarin effect, including an increase in prothrombin time;
- allergic reactions with respiratory symptoms (such as dyspnea, bronchospasm, wheezing, angioedema) and anaphylaxis;
- change in appetite, motor weakness, respiratory depression;
- mental disorders of varying severity and nature (depending on the type of person and duration of treatment). These include mood changes (usually euphoria, sometimes dysphoria), changes in activity (usually fatigue, less increased physical activity), impairment of cognitive functions and perceptions (eg, decision making, perception disorders);
- reported a possible exacerbation of asthma symptoms, although a causal relationship was not established;
- the symptoms of the "withdrawal" syndrome can be manifested as anxiety, anxiety, nervousness, insomnia, hyperkinesia, tremor and disorders from the gastrointestinal tract. Other symptoms that were extremely rare with a sharp discontinuation of tramadol treatment include panic attacks, anxiety, hallucinations, paresthesia, ringing in the ears, and unusual CNS symptoms.
Paracetamol:
side effects are rare, possible: hypersensitivity reactions to the drug, including skin rash; hematopoiesis disorders including thrombocytopenia and agranulocytosis, however, a causal relationship with paracetamol has not been established;
- there is evidence that simultaneous use of paracetamol with indirect anticoagulants (eg, warfarin) may lead to hypoprothrombinemia; in other studies, prothrombin time did not change;
- in very rare cases, serious skin reactions have been reported.