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1. Classification & Indications Natural Penicillins (Pen G/V): First-line for streptococcal infections, syphilis Aminopenicillins (Amoxicillin): C

The process flow of preparing suppositories by hot melt method is as follows: melting the matrix, adding drugs (mixed), injection molding, cooling, sc

Cocoa butter: Cocoa butter has homogeneity and multiple properties, with three crystal forms: alpha, beta, and gamma. Among them, alpha and gamma crys

The drug passes through the inferior rectal and anal veins, bypasses the liver through the internal iliac vein, and directly enters the systemic circu

Drugs are not or less affected by gastrointestinal pH or enzyme damage; ② Avoid the irritation of drugs on the gastric mucosa;

It can be divided into rectal, vaginal, and urethral suppositories, such as anal suppositories, vaginal suppositories, urethral suppositories, dental

Suppository refers to a solid preparation of a drug with a suitable matrix and a certain shape for intraluminal administration in the human body. Supp

The volatility of solvents is an important source of pollution, which not only pollutes the air and endangers the health of workshop workers. If print

The effect of solvents on absorption bands is related to the solvent, solute, and type of transition band. According to the properties of the solute a

Toxicity: Organic solvents have fat solubility, so they can be quickly absorbed through the intact skin in addition to entering the body through the r

Organic solvents are a large class of organic compounds widely used in daily life and production, with a small molecular weight and a liquid state at

Solvents play a significant role in adhesives, some of which act as media for polymerization reactions, slowing down the reaction and making the tempe