QUESTION: I have been a sufferer of angina pectoris for several years. Recently, for the first time my doctor prescribed an ointment of nitroglycerin to use for my condition.
When I decided to spread it carefully over my heart where it would do the most good, my wife wanted to put it all over my chest, like some cold medicine.
Which is the correct method?
ANSWER: Nitroglycerin absorbed though the skin uses a route of administration called "transdermal" rather than "oral" or "intravenous", and can afford you its benefits for a longer period of time than the "under the tongue" pills or capsules.
In order for it to be absorbed correctly, you must cover an area of skin that is sufficiently large to do the job, about 6 inches long by 3-6 inches wide.
It doesn't necessarily have to be placed over your heart, for any place on the chest will work just as well.
You might even use the upper portion of your arm or back (but stay away from skin that is too hairy).
The ointment will begin to take effect in about 30 minutes and the effects continue for from six to eight hours.
Use the wax paper that comes with the tube, as it usually has markings that will indicate to you the size of the area that should be covered.
Then attach the wax paper to your skin with adhesive tape.
Try not to get the medication on your fingers since it can be absorbed from there too, and increase or cause side effects.
When you are ready for the next application, remove the wax paper, wash the skin carefully, and then apply the next dose to another site on your chest.
This will help to avoid possible skin rashes that can be caused by both the ointment and the tape.
To keep peace in the family you can alternate sites between your heart area and anywhere else on your chest your wife wishes to place this effective and important medication for your condition.
The material contained here is "FOR INFORMATION ONLY" and should not replace the counsel and advice of your personal physician.
Promptly consulting your doctor is the best path to a quick and successful resolution of any medical problem.
