You should not use this medicine if you have had an allergic reaction to phenyltoloxamine or aspirin, or if you have kidney disease, heart block, chickenpox, the flu, a viral infection, a bleeding disorder, or a history of stomach bleeding.
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are also using blood thinners (Coumadin®), danaparoid (Orgaran®), heparin, methotrexate (Rheumatrex®), or medicines for glaucoma such as acetazolamide (Diamox®), brinzolamide (Azopt®), dichlorphenamide (Daranide®), dorzolamide (Trusopt®), or methazolamide (Neptazane®).
Make sure your doctor knows if you are using any medicines that make you sleepy (such as sleeping pills, cold and allergy medicine, narcotic pain relievers, or sedatives), or if you have received a chickenpox vaccine (Varivax®) within the past 6 weeks.
Do not drink alcohol while you are using this medicine.
Make sure your doctor knows if you are pregnant or breastfeeding, or if you have liver disease, high blood pressure, diabetes, glaucoma, asthma, or problems with urination.
Do not give this medicine to a child or teenager who has or recently had the flu or chickenpox. This medicine may cause Reye's syndrome in a child who has a viral infection or has just recovered from one. Reye's syndrome is a dangerous condition that can cause brain damage or death if not treated promptly.
This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests.