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Dizziness.
Headache.
Abdominal pain.
Xerostomia (Dry mouth).
Somnolence (Sleepiness).
Pharyngitis (Inflammation of the back of the throat).
In addition to the undesirable effects reported and listed as previously mentioned, the following undesirable effects have been reported but were not recognized as to whether it has a direct relation to the use of Cetirizine.
Blood and lymphatic system disorders: Very rare: Thrombocytopenia.
Immune system disorders: Rare: Hypersensitivity.
Very rare: Anaphylactic shock.
Metabolism and nutrition disorders: Not known: Increased appetite.
Psychiatric disorders: Uncommon: Agitation.
Rare: Aggression, confusion, depression, hallucination, insomnia.
Very rare: Tics.
Not known: Suicidal ideation, nightmare.
Nervous system disorders: Uncommon: Paraesthesia.
Rare: Convulsions.
Very rare: Syncope, dysgeusia, tremor, dystonia, dyskinesia.
Not known: Amnesia, memory impairment.
Eye disorders: Very rare: Accommodation disorder, blurred vision, oculogyration.
Ear and labyrinth disorders: Not known: Vertigo.
Cardiac disorders: Rare: Tachycardia.
Gastrointestinal disorders: Uncommon: Diarrhoea.
Hepatobiliary disorders: Rare: Abnormal hepatic function (increased transaminases, alkaline phosphatase, gamma-GT and bilirubin).
Not known: Hepatitis.
Skin and subcutaneous tissue disorders: Uncommon: Rash, pruritus.
Rare: Urticaria.
Very rare: Angioneurotic edema, fixed drug eruption.
Not known: Acute generalized exanthematous pustulosis.
Musculoskeletal and connective tissue disorders: Not known: Arthralgia.
Renal and urinary disorders: Very rare: Dysuria, enuresis.
Not known: Urinary retention.
General disorders and administration site conditions: Uncommon: Asthenia, malaise.
Rare: Edema.
Phenylephrine HCl: The following most common undesirable effects linked to Phenylephrine may occur including: Trouble sleeping.
Dizziness.
Lightheadedness.
Headache.
Nervousness.
Shaking.
Palpitations.
Fast and irregular heartbeat.
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