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Nitroglycerin belongs to the class of medications called antianginals. Nitroglycerin patches are used to prevent angina attacks (chest pain). Nitroglycerin reduces the number of angina attacks by relaxing blood vessels and increasing the oxygen and blood supply to the heart. The nitroglycerin patch is not intended for immediate relief of angina.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are being given this medication, speak to your doctor. Do not stop using this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to use this medication if their doctor has not prescribed it.
The usual dose of nitroglycerin patches varies according to need. The patch is usually applied in the morning and taken off 12 to 14 hours later (leaving 10 to 12 hours overnight without the patch).
The patch may be applied to any convenient skin area - recommended sites include the upper arm, back, shoulders, or chest. Use a different application site each time. A suitable area may be shaved if necessary. Do not apply the patch to the ends of the arms or legs. Wash your hands thoroughly after application. Following use, discard the patch in a manner that prevents accidental application or ingestion by curious pets or children.
Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are using the medication without consulting your doctor.
It is important to use this medication exactly as prescribed by your doctor. If you miss a dose, apply a patch as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not apply a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
The drug product is a matrix transdermal patch design consisting of three laminated film layers: a) a thin, occlusive, low density polyethylene (LDPE) backing film layer; b) an acrylic adhesive matrix/drug reservoir layer, and c) siliconized polyester release liner layer comprised of overlapped liner that form an easy-opening tab.
Each TRINIPATCH 0.2 (7 cm²) contains 22.4 mg of nitroglycerin and delivers approximately 0.2 mg of active substance per hour. Nonmedicinal ingredients: DuroTak 80-1196 and sorbitan mono-oleate.
Each TRINIPATCH 0.4 (14 cm²) contains 44.8 mg of nitroglycerin and delivers approximately 0.4 mg of active substance per hour. Nonmedicinal ingredients: DuroTak 80-1196 and sorbitan mono-oleate.
Each TRINIPATCH 0.6 (21 cm²) contains 67.2 mg of nitroglycerin and delivers approximately 0.6 mg of active substance per hour. Nonmedicinal ingredients: DuroTak 80-1196 and sorbitan mono-oleate.
The nitroglycerin patch should not be used by anyone who:
People who use the nitroglycerin patch regularly or intermittently should not use the erectile dysfunction medications called PDE-5 inhibitors (e.g., sildenafil, tadalafil or vardenafil) because a life-threatening lowering of blood pressure can result.
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