temporarily relieves these symptoms occurring with a cold, hay fever, or other upper respiratory allergies:

to sedate a child or to make a child sleepy If you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product.

with any other product containing diphenhydramine, even one used on skin

heart disease high blood pressure thyroid disease diabetes trouble urinating due to an enlarged prostate gland glaucoma cough that occurs with too much phlegm (mucus) a breathing problem or chronic cough that lasts or as occurs with smoking, asthma, chronic bronchitis, or emphysema

taking any other oral nasal decongestant or stimulant taking sedatives or tranquilizers

do not use more than directed marked drowsiness may occur avoid alcoholic drinks alcohol, sedatives, and tranquilizers may increase drowsiness be careful when driving a motor vehicle or operating machinery excitability may occur, especially in children

you get nervous, dizzy, or sleepless symptoms do not get better within 7 days or are accompanied by fever cough lasts more than 7 days, comes back, or is accompanied by fever, rash or persistent headache. These could be signs of a serious condition.