The following side effects may be associated with the use of pseudoephedrine:
(frequencies not known: cannot be estimated from the available data).
Immune system disorders:
Hypersensitivity reactions – cross-sensitivity may occur with other sympathomimetics.
Psychiatric disorders:
Hallucinations (particularly in children), insomnia, sleep disturbances, anxiety, restlessness, irritability, excitability, psychotic disorder has occurred rarely following misuse of pseudoephedrine.
Nervous system disorders:
Headache, tremor, dry mouth.
Eye disorders:
Angle-closure glaucoma.
Cardiac disorders:
Tachycardia, palpitations, arrhythmia.
Vascular disorders:
Hypertension, impaired circulation to the extremities.
Gastrointestinal disorders:
Nausea, vomiting, ischaemic colitis.
Skin and subcutaneous tissue disorders:
Severe skin reactions, including acute generalized exanthematous pustulosis (AGEP). Fixed drug eruption in the form of erythematous nodular patches, rash.
Renal and urinary disorders:
Urinary retention.
Posterior reversible encephalography syndrome:
See Section 4.4.
Reversible cerebral vasoconstriction syndrome:
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 at www.mhra.gov.uk/yellowcard or search for 'MHRA Yellow Card' in the Google Play or Apple App Store.