Nitroglycerin aerosol
Function and Efficacy
The main pharmacological effect of all nitrates is the same, that is, relaxing vascular smooth muscle. Organic nitrates release nitric oxide (NO) in the body. NO is the same as endothelial relaxing factor, activating guanylate cyclase, increasing cyclic guanosine monophosphate (cGMP) in smooth muscle cells, thereby relaxing vascular smooth muscle, dilating peripheral arteries and veins, and having a stronger dilating effect on veins. Venous dilation causes blood to remain in the periphery, reducing the amount of blood returning to the heart, and reducing left ventricular end-diastolic pressure and pulmonary capillary wedge pressure (preload). Arterial dilation reduces peripheral vascular resistance, systolic arterial pressure, and mean arterial pressure (afterload). Coronary artery dilation increases coronary perfusion. The overall effect is to reduce myocardial oxygen consumption, increase oxygen supply, and relieve angina pectoris. No carcinogenic and mutagenic phenomena were observed in animal experiments.
Ingredients
Main ingredients and chemical names: Molecular formula: C3H5N3O9 Molecular weight: 227.09
Appearance
This product is a colorless or slightly yellowish green clear liquid.
Indication
Prevention and treatment of angina pectoris in coronary heart disease.
Usage and Dosage
When angina pectoris attacks, spray 1-2 times on the sublingual mucosa of the oral cavity, which is equivalent to 0.5-1 mg of nitroglycerin. When using, first remove the spray cap, put the cover on the spray head, turn the bottle upside down, aim the cover at the sublingual mucosa of the oral cavity, press the valve, and the liquid medicine will be sprayed into the oral cavity in the form of mist.
Adverse Reactions
In the early stage of medication, nitrate-induced vasodilatory headache may occur, as well as facial flushing, dry mouth, dizziness, orthostatic hypotension and reflex tachycardia. Occasionally, blood pressure may drop significantly, bradycardia, angina pectoris may worsen and syncope may occur. Some patients may experience numbness in the oral mucosa.
Precautions
It is contraindicated in patients with early myocardial infarction (with severe hypotension and tachycardia), severe anemia, glaucoma, increased intracranial pressure, and allergic reaction to nitroglycerin. It is also contraindicated in patients using sildenafil citrate (Viagra), which enhances the antihypertensive effect of nitroglycerin.
Special Population Medication
Precautions for children: All studies on this type of drug were conducted in adults. There is no data comparing the use of drugs in children and adults, so it is not recommended for use in children. Precautions for pregnancy and lactation: No toxic effects on embryos were observed in animal experiments, and it is not clear whether this drug is excreted through breast milk, but there is a lack of experience in pregnant and lactating women. Precautions for the elderly: It is not yet clear.
Drug Interactions
1. Use of this drug may cause hypotension when drinking moderately or excessively. 2. Combination with antihypertensive drugs or vasodilators may enhance the postural hypotensive effect of nitrates. 3. Aspirin may reduce the clearance of sublingual nitroglycerin and enhance its hemodynamic effects. 4. The use of long-acting nitrates may reduce the therapeutic effect of sublingual medications. 5. Sildenafil citrate (Viagra) enhances the antihypertensive effect of organic nitrates. 6. The efficacy may be weakened when used in combination with acetylcholine, histamine and sympathomimetic amines.
Storage
Keep in a dark, airtight container in a cool place.
Packaging Specification
Each bottle contains 0.1 g of nitroglycerin, each bottle contains 200 presses, and each press contains 0.5 mg of nitroglycerin
Validity Period
24 months
Manufacturer
Jewim Pharmaceutical (Shandong) Co., Ltd.
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Founded in:
1993-12-17 -
Address:
West end of Peitianmen Street, High-tech Industrial Development Zone, Tai'an City, Shandong Province -
Tax NO.:
91370900613681048D -
Registered Funds:
118.8505098 yuan -
Website:
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Email: