Methdilazine

Tell the doctor in charge that you are taking this medicine before you have any skin tests for allergies. The results of the tests may be affected by this medicine. When taking Methdilazine on a regular basis, make sure your doctor knows if you are taking large amounts of aspirin at the same time (as for arthritis or rheumatism). Effects of too much aspirin, such as ringing in the ears, may be covered up by the antihistamine. Check with your doctor right away if you have symptoms of pale or blue lips, fingernails, or skin, difficult or troubled breathing, irregular, fast, slow or shallow breathing or shortness of breath. These could be signs of a condition called respiratory depression.