Do not use  4-Way if you have used an MAO inhibitor in the past 14 days, such as isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, or tranylcypromine.
Before taking this medicine
You should not use 4-Way if you are allergic to it.
Do not use 4-Way if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
Ask a doctor or pharmacist if it is safe for you to use this medicine if you have other medical conditions, especially:
heart disease, heart rhythm disorder;
high blood pressure;
diabetes;
glaucoma;
a thyroid disorder; or
an enlarged prostate or urination problems.
It is not known whether 4-Way will harm an unborn baby. Do not use this medicine without a doctor's advice if you are pregnant.
It is not known whether phenylephrine nasal passes into breast milk or if it could harm a nursing baby. Do not use this medicine without a doctor's advice if you are breast-feeding a baby.
