（R）-3-amino-1-butanol

Azithromycin(CAS 83905-01-5) is a kind of antibiotic with a wide range of clinical applications. It has the advantages of a broad antibacterial spectrum, little irritation to the gastrointestinal tract, and fast oral absorption. Adults and children can use it.

Trazodone hydrochloride(CAS 25332-39-2) is a triazole pyridine antidepressant, which is mainly used to treat various types of depression, anxiety disorders accompanied by depressive symptoms, and mood disorders after withdrawal of drug dependents.

Aspirin (also called acetylsalicylic acid, CAS 50-78-2) has an inhibitory effect on platelet aggregation and can prevent thrombosis. It is clinically used to prevent transient ischemic attacks, myocardial infarction, arterial thrombosis and atherosclerosis hardening. In addition, it can also treat biliary ascariasis.

Sulfobutyl Ether Beta Cyclodextrin (CAS: 182410-00-0) is a new type of anionic, highly water-soluble cyclodextrin derivative. Can be used as an excipient for drugs to treat COVID-19.

Entecavir is a guanine nucleoside analog, which has an inhibitory effect on hepatitis B virus (HBV) polymerase. At present, it is mainly used for antiviral therapy of hepatitis B. It has the characteristics of fast onset, strong resistance to hepatitis B virus, and low resistance. It is the first choice for antiviral therapy for patients with chronic hepatitis B.

Dexamethasone (CAS:50-02-2, DSMS), also known as flumethasone, is a synthetic adrenal cortex hormone.It has anti-inflammatory, anti-toxic and anti-allergic effects.

Cefotaxime sodium (CAS: 64485-93-4) is a commonly used carbapenem antibiotic. It belongs to the third-generation semi-synthetic cephalosporin. It has a broader antibacterial spectrum than cefuroxime. It is resistant to gram-negative bacteria. Stronger

● White, odorless, crystalline powder with good fluidity. ● The coarse-grained lactose produced by the crystallization process can be classified into products of various specifications with narrow particle size distribution after sieving. ● The sieved lactose is composed of single crystal and a small amount of crystal blocks. Products of different specifications provide the possibility of selection for various purposes, and sieved lactose with different particle size distribution can be customized according to the needs of customers. ● Due to the good mixing, excellent flowability and moderate formability of this product, wet granulation is no longer a necessary process in capsule filling, so it is very suitable for capsule and granule filling and powder mixing.