Phenylephrine nasal may also be used for purposes other than those listed in this medication guide. A very dangerous drug interaction with serious side effects could occur. You may not be able to use phenylephrine nasal, or you may require a lower dose or special monitoring during your therapy if you have any of the conditions listed above. It is not known whether phenylephrine nasal will harm an unborn baby. Do not use this medication without first talking to your doctor if you are pregnant.
Infants are especially sensitive to the effects of phenylephrine nasal.
Do not use this medication without first talking to your doctor if you are breast-feeding a baby. If you are over 60 years of age, you may be more likely to experience side effects from phenylephrine nasal. You may require a lower dose of this medication. Use phenylephrine nasal exactly as directed by your doctor, or follow the instructions that accompany the package. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.