Coro-Nitro pump spray contains the active ingredient glyceryl trinitrate, which is a type of medicine called a nitrate. It is used to help the heart work more easily. (NB. Glyceryl trinitrate is also available without a brand name, ie as the generic medicine.)
Glyceryl trinitrate works by being converted in the body to a chemical called nitric oxide. This chemical is made naturally by the body and has the effect of making the veins and arteries relax and widen (dilate). When the blood vessels dilate in this way there is more space inside them and hence less resistance. This makes it easier for the heart to pump blood around the body.
Widening the veins also decreases the volume of blood that returns to the heart with each heartbeat. This makes it easier for the heart to pump that blood out again.
As a result of both these actions, the heart does not need as much energy to pump the blood around the body and therefore needs less oxygen.
Glyceryl trinitrate also widens the arteries within the heart itself, which increases the blood and oxygen supply to the heart muscle.
The pain of angina is caused by too little oxygen reaching the heart when its workload increases, such as during exercise. Glyceryl trinitrate improves the oxygen supply to the heart, as well as decreasing the amount of oxygen that the heart needs by making it easier for the heart to pump blood around the body. It can therefore be used to treat angina.
Coro-Nitro pump spray is sprayed under the tongue. This area of the mouth has a large supply of blood vessels that allows the medicine to be rapidly absorbed. Glyceryl trinitrate taken in this way is used to give rapid relief from the pain of an angina attack. The spray can also be used to prevent an anticipated attack, for example before exercise or physical effort, emotional stress or exposure to cold.
Glyceryl trinitrate is also available as long-acting tablets, skin patches and ointment that are used regularly each day to help prevent angina attacks. See the factsheets linked at the end of this article for more information.
This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here does not mean that all people using this medicine will experience that or any side effect.
The side effects listed above may not include all of the side effects reported by the drug's manufacturer.For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
It is important to tell your doctor or pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you start treatment with this medicine. Similarly, check with your doctor or pharmacist before taking any new medicines while taking this one, to ensure that the combination is safe.
The medicines for erectile dysfunction (impotence) listed below must not be used by people taking glyceryl trinitrate, because the combination can produce a severe drop in blood pressure resulting in dizziness, fainting, or even a heart attack:
If this medicine is taken in combination with other medicines that reduce blood pressure, either as a treatment for high blood pressure (antihypertensives), or as a side effect, there may be an enhanced blood pressure lowering effect. This might make some people feel dizzy. If you do feel dizzy, you should lie down until the symptoms pass. Other medicines that can reduce blood pressure include the following:
|Deponit patches||Glytrin spray||GTN sublingual tablets|
|Minitran patches||Nitrocine injection||Nitro-Dur patches|
|Nitrolingual pump spray||Nitromin spray||Percutol ointment|
|Suscard tablets||Transiderm-nitro patches|
Glyceryl trinitrate sublingual tablets, sprays and injection are also available without a brand name, ie as the generic medicine.