Structured content: Clinical application and production overview of isosorbide mononitrate

First paragraph: content overview
Isosorbide mononitrate is a vasodilator drug commonly used to treat coronary heart disease and angina pectoris, improving blood supply to the myocardium by relaxing vascular smooth muscle. This article will start with its pharmacological effects, indications, usage and dosage, and adverse reactions, and list major domestic manufacturers and product information. The core content focuses on clinical value and safe medication, while the secondary content covers common preparations on the market.

Paragraph 2: Pharmacological effects and indications
As a nitrate derivative, isosorbide mononitrate directly dilates coronary arteries and reduces cardiac preload by releasing nitric oxide. Mainly applicable tochronic stable anginaPreventive treatment is not effective for acute attacks. Clinical studies have shown that it can prolong exercise tolerance time (data shown in the table below), but please note that it is contraindicated in combination with phosphodiesterase inhibitors.

Paragraph 3: Usage and Precautions
Ordinary tablets are usually 20 mg twice a day, and sustained-release preparations can be taken once a day. Need to take when taking medicationtilt drug administration(Stay in a sitting or lying position when taking medication for the first time) to avoid orthostatic hypotension. Common adverse reactions include headache (about 20% of patients) and facial flushing, most of which are relieved after continued medication. It is forbidden to drink alcohol while taking the medicine to avoid rebound angina caused by sudden discontinuation of the medicine.

Paragraph 4: Main products in the market
Domestic products that have passed consistency evaluation include Lunan Pharmaceutical’sXinkang(market share exceeds 30%), Qilu Pharmaceutical’sisoladineWait. Sustained-release dosage forms are more popular due to convenience in administration, but the price is 50%-80% higher than ordinary tablets. It is important to note the differences in bioavailability of different dosage forms (approximately 80% for regular tablets and approximately 60% for extended-release tablets).

Paragraph 5: Summary and suggestions
Isosorbide mononitrate is used as a basic medication for angina pectoris and must strictly follow the principle of individualized administration. Patients should monitor their blood pressure and heart rate regularly, and seek medical attention promptly if they experience blurred vision or severe dizziness. When selecting preparations, it is necessary to balance economy and medication compliance. Original drugs and generic drugs that have passed consistency evaluation are both reliable choices.

Quote sources:
1. "Chinese Pharmacopoeia" 2020 Edition Part 2
2. Chinese Medical Association's "Guidelines for the Diagnosis and Treatment of Stable Coronary Heart Disease"
3. Manufacturers: Lunan Pharmaceutical (Xinkang), Qilu Pharmaceutical (Ilolidine), Zhuhai Rundu (Danzuo)
4. Clinical data reference: 2019 meta-analysis of nitrates in the AHA journal "Circulation"