<p>The most common adverse reaction is sedation, which often disappears after a few days if tolerance is acquired. Hypersensitivity reactions have been reported.</p>

<ul>
	<li><strong>Central Nervous System</strong>: Lassitude, dizziness, tinnitus, inability to concentrate, incoordination, irritability, insomnia and tremors. Agitation and convulsions, especially in children and restlessness, disorientation and hallucinations in adults, are common symptoms following overdose.</li>
	<li><strong>Gastrointestinal</strong>: Nausea, vomiting, diarrhoea, colic, epigastric pain, anorexia, dryness of mouth and constipation.</li>
	<li><strong>Genitourinary</strong>: Urinary retention.</li>
	<li><strong>Cardiovascular</strong>: Palpitations, headache.</li>
	<li><strong>Ocular</strong>: Blurred vision, increased intraocular pressure.</li>
	<li><strong>Musculoskeletal</strong>: Muscular weakness.</li>
	<li><strong>Haematological</strong>: Rare cases of blood dyscrasias including agranulocytosis and haemolytic anaemia have been reported.</li>
</ul>