It participates in some metabolic reactions in the body, can fight against the peroxidation of free radicals, protect the skin, increase ovarian function, prevent habitual abortion, etc. It can play an antioxidant role when used in combination with vitamin C.

It participates in the formation of antibodies, collagen and tissue repair in the body, as well as the metabolism of carbohydrates, fats and proteins, maintains the integrity of blood vessels, increases the body's resistance, and can play an antioxidant role when used in combination with vitamin E.

Dirithromycin is a macrolide antibiotic that inhibits protein synthesis by binding to the 50S ribosomal subunit of sensitive microorganisms. It is active against aerobic Gram-positive microorganisms (such as Staphylococcus aureus, Streptococcus pneumoniae, Streptococcus pyogenes), aerobic Gram-negative microorganisms (such as Haemophilus influenzae, Legionella pneumophila, Moraxella catarrhalis) and other microorganisms (such as Mycoplasma pneumoniae). In vitro tests also show that it is active against Listeria monocytogenes, Staphylococcus (C.F.G group), Bordetella pertussis, Propionibacterium acnes, etc., but the clinical significance is not yet fully understood. Bacteria resistant to other macrolide antibiotics are also resistant to this product.

Unspecified

It has vasodilatory and central muscle relaxant effects. It can directly dilate vascular smooth muscle and inhibit multi-synaptic reflexes, reduce skeletal muscle tension, and relieve muscle rigidity and clonus caused by brain and spinal cord damage.

1. Analgesic effect: It is mainly through inhibiting the synthesis of prostaglandins and other substances that can make pain sensitive to mechanical or chemical stimulation (such as bradykinin, histamine), and is a peripheral analgesic. However, the possibility of central analgesia (possibly acting on the hypothalamus) cannot be ruled out; 2. Antipyretic effect: It may act on the hypothalamic temperature regulation center to cause peripheral vasodilation, increased skin blood flow, sweating, and increased heat dissipation to have an antipyretic effect. This central effect may be related to the inhibition of prostaglandin synthesis in the hypothalamus; 3. Inhibition of platelet aggregation: It works by inhibiting platelet cyclooxygenase and reducing the production of prostaglandins.