Piriton Allergy Tablets 60

Round, biconvex, yellow tablets engraved with a P to one side of the breakline. Each tablet contains 4 milligrams of chlorphenamine maleate.

Chlorphenamine maleate is a potent antihistamine (H1-antagonist).
Also contains: Lactose, Maize Starch,Yellow Iron Oxide (E172), Magnesium Stearate, Purified Water.

The anticholinergic properties of chlorphenamine may cause drowsiness, dizziness, blurred vision and psychomotor impairment in some patients which may seriously affect ability to drive and use machinery.
Sedation varying from slight drowsiness to deep sleep. The following may also occasionally occur: inability to concentrate; lassitude; blurred vision; gastro-intestinal disturbances such as anorexia, dyspepsia, nausea, vomiting, diarrhoea and abdominal pain; hepatitis including jaundice; urinary retention; headaches; dry mouth; dizziness; palpitation; tachycardia; arrythmias; hypotension; chest tightness; thickening of bronchial secretions; haemolytic anaemia and other blood dyscrasias; allergic reactions including exfoliative dermatitis, photosensitivity and urticaria; twitching, muscular weakness and inco-ordination; tinnitus; depression, irritability and nightmares.

Children and the elderly are more likely to experience the neurological anticholinergic effects.

The anticholinergic properties of chlorphenamine are intensified by monoamine oxidase inhibitors (MAOIs). Piriton Allergy Tablets is therefore contra-indicated in patients who have been treated with MAOIs within the last fourteen days.
Chlorphenamine, in common with other drugs having anticholinergic effects, should be used with caution in epilepsy; raised intra-ocular pressure including glaucoma; prostatic hypertrophy; severe hypertension or cardiovascular disease; bronchitis, bronchiectasis and asthma; hepatic disease and thyrotoxicosis. Children and the elderly are more likely to experience the neurological anticholinergic effects.

The effects of alcohol may be increased.
There is inadequate evidence of safety in human pregnancy. Piriton Tablets should only be used during pregnancy when clearly needed and when the potential benefits outweigh the potential unknown risks to the foetus. Use during the third trimester may result in reactions in neonates. Only use under doctor supervision.

It is reasonable to assume that chlorphenamine maleate may inhibit lactation and may be secreted in breast milk. The use of Piriton preparations in mother's breast feeding their babies requires that the therapeutic benefits of the drug should be weighed against the potential hazards to the mother and baby. Only under supervision of doctor.

Store below 30°C.