<p><strong>Pediatric Patients</strong>: Promethazine hydrochloride are contraindicated for children under 2 years of age. In pediatric patients 2 years of age and older, the dosage should not exceed half that of the suggested adult dose. As an adjunct to premedication, the suggested dose is 0.5 mg per lb. of body weight in combination with an appropriately reduced dose of narcotic or barbiturate and the appropriate dose of an atropine-like drug. Antiemetics should not be used in vomiting of unknown&nbsp;etiology&nbsp;in pediatric patients&nbsp;<br />
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<strong>Geriatric Patients&nbsp;(approximately 60 years or older)</strong>: Since therapeutic requirements for sedative drugs tend to be less in geriatric patients, the dosage should be reduced for these patients.</p>