What special precautions should I follow?  

Before taking acetaminophen and propoxyphene,

• tell your doctor and pharmacist if you are allergic to acetaminophen, propoxyphene, sulfite, or any other drugs.
• tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially acetaminophen (Tylenol); anticoagulants ('blood thinners') such as warfarin (Coumadin); antidepressants; medications for cough, cold, or allergies; sedatives; seizure medications; sleeping pills; tranquilizers; and vitamins.
• tell your doctor if you have or have ever had liver or kidney disease, a history of alcoholism, lung or thyroid disease, prostatic hypertrophy, or urinary retention.
• tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking acetaminophen and propoxyphene, call your doctor.
• if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking acetaminophen and propoxyphene.
• you should know that this drug may make you drowsy. Do not drive a car or operate machinery until you know how this drug affects you.
• remember that alcohol can add to the drowsiness caused by this drug.

What should I do if I forget a dose?  

This medication usually is taken as needed. If your doctor has told you to take acetaminophen and propoxyphene regularly, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.