<ul>
	<li>MAO-inhibitors may prolong and intensify the anticholinergic effect of pheniramine (see Contraindications).</li>
	<li>Adverse CNS effects of pheniramine may be enhanced when it is taken with alcohol or other CNS depressants (eg. hypnotics, sedatives, tranquilizers).</li>
	<li>Atropine and related drugs may enhance the anticholinergic activity of pheniramine.</li>
</ul>