Levosimendan Injection is not to be prepared in saline; it is usually prepared using a dextrose solution. The drug is intended for intravenous infusion only and can also be administered via peripheral and central venous infusion, and needs to be diluted prior to use. It is usually prepared by mixing with 5% dextrose injection and cannot be prepared with saline. If the preparation contains particulate impurities and discoloration prior to use, the medication needs to be reconstituted. Usually the main component of levosimendan injection is levosimendan, and assisted by sterilized anhydrous ethanol solution, anhydrous citric acid and other excipients. It is clinically used when diuretics, angiotensin-converting enzyme inhibitors, digitalis and other medications are not effective in the treatment of heart failure. At the same time for levosimendan or its excipients allergy, as well as severe liver and kidney function impairment should be prohibited from use, and pregnant women and lactating women should be used with caution. Dizziness, hypokalemia, insomnia, premature beats and other uncomfortable symptoms may occur after use, after the use of uncomfortable symptoms, should inform the doctor in time, so as to avoid delaying the condition.