Always ask a doctor before giving cough or cold medicine to a child. Death can occur from the misuse of cough or cold medicine in very young children.
You should not use this medication if you are allergic to phenylephrine.
Do not use phenylephrine if you have taken a monoamine oxidase inhibitor (MAOI) such as furazolidone (Furoxone), isocarboxazid (Marplan), linezolid (Zyvox), phenelzine (Nardil), procarbazine (Matulane), or tranylcypromine (Parnate) in the last 14 days. Serious, life-threatening side effects can occur if you take phenylephrine before the MAO inhibitor has cleared from your body.
Before you take phenylephrine, tell your doctor if you are allergic to any decongestants, or if you have heart disease, heart rhythm disorder, high blood pressure, circulation problems, diabetes, glaucoma, a thyroid disorder, kidney disease, an enlarged prostate or urination problems, anxiety, sleep problems, bipolar disorder or other mental illness.
Phenylephrine may interact with heart or blood pressure medications, antidepressants, diabetes medications, migraine headache medications, and other decongestants.
Never take more of the medicine than directed on the label or prescribed by your doctor.
Call your doctor if your symptoms do not improve after 7 days of using phenylephrine, or if they get worse and your also have a fever.