Not to be used for persistent or chronic cough (eg, cough occurring w/ asthma), or where cough is accompanied by excessive secretions. Patients w/ resp condition eg, emphysema, chronic bronchitis, or acute or chronic bronchial asthma; glaucoma, prostate hyperplasia w/ urinary retention. Not to be used w/ any other diphenhydramine-containing product (even one used on skin). May cause drowsiness. Avoid alcohol during treatment. Use caution when driving a motor vehicle or operating machinery. Not to be used during pregnancy & lactation. Not recommended in childn <6 yr.