Pseudoephedrine may also be used for purposes other than those listed in this medication guide. A very dangerous drug interaction could occur, leading to serious side effects. You may not be able to take pseudoephedrine, or you may require a lower dose or special monitoring during treatment if you have any of the conditions listed above. It is not known whether pseudoephedrine will harm an unborn baby. Do not take pseudoephedrine without first talking to your doctor if you are pregnant.
Infants are especially sensitive to the effects of pseudoephedrine.
Do not take this drug 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 pseudoephedrine. You may require a lower dose of this medication. Take pseudoephedrine 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.