Tonocard

Why should Tonocard not be prescribed?

If you have heart block (conduction disorder) and do not have a pacemaker, or if you are sensitive to or have ever had an allergic reaction to Tonocard or certain local anesthetics such as Xylocaine, do not take this medication.

Special warnings about Tonocard

Be alert for signs of the blood and lung disorders that can occur early in your treatment. (See "Most important fact about this drug.")

If you have congestive heart failure, make sure the doctor is aware of it. Tonocard could worsen this condition.

Also make certain that the doctor is aware of any kidney or liver problems that you have. You will need to be monitored more carefully.

Before any kind of surgery, including dental surgery and emergency treatment, make sure the surgeon knows that you are taking Tonocard.

Possible food and drug interactions when taking Tonocard

If Tonocard is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Tonocard with any of the following:

The anesthetic Lidocaine (Xylocaine)
The blood pressure medicine Metoprolol (Lopressor)
Other antiarrhythmics such as Quinidex, Procan, Mexitil

Special information if you are pregnant or breastfeeding

The effects of Tonocard during pregnancy have not been adequately studied. However, animal studies have shown an increase in stillbirths and spontaneous abortions. If you are pregnant or plan to become pregnant, inform your doctor immediately. Tonocard may appear in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment is finished.

Recommended dosage

ADULTS

Dosages of Tonocard must be adjusted according to its effects on each individual. Your doctor should monitor you carefully to determine if the dosage you are taking is working properly. He may divide your doses further or make other changes, such as shortening the time between doses, if side effects occur.