The following CIOMS frequency rating is used: Very common (≥ 1/10); common (≥ 1/100 to < 1/10); uncommon (≥ 1/1000 to < 1/100); rare (≥ 1/10 00 to < 1/1000); very rare (< 1/10 000), not known (cannot be estimated from the available data).
Immune system disorders
Allergic reactions including urticaria, rash, pruritus and anaphylactic reactions have been reported,
Skin and subcutaneous tissue disorders
Photosensitive skin reactions have been reported.
Nervous system disorders
Somnolence, dizziness, headaches, extrapyramidal effects, restless legs syndrome, muscle spasms and tic-like movements of the head and face.
The elderly are particularly susceptible to the anticholinergic effects and confusion due to promethazine.
Psychiatric disorders
Restlessness, nightmares and disorientation.
Eye disorders
Blurred vision
Gastrointestinal disorders
Epigastric irritation/discomfort, dry mouth
Renal and urinary disorders
Urinary retention
Metabolism and nutrition disorders
Anorexia
Cardiac disorders
Palpitations, arrhythmias, (including QT prolongation and torsade de pointes)
Vascular disorders
Hypotension
Hepatobiliary disorders
Jaundice
Blood and lymphatic system disorders
Blood dyscrasias including haemolytic anaemia rarely occur. Agranulocytosis.
General and administration site conditions
Tiredness
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 Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.