This product is a brain metabolism improving drug, which is a cyclic derivative of r-aminobutyric acid. It has the effect of resisting brain function damage caused by physical and chemical factors. It can promote ATP in the brain, promote acetylcholine synthesis and positively enhance the conduction of nerve excitement, and has the effect of promoting brain metabolism. It can resist brain function damage caused by physical and chemical factors. It has an improving effect on retrograde hyperactivity caused by hypoxia. It can enhance memory and improve learning ability.

1. It has obvious bronchodilator effect; 2. The duration of bronchodilator effect is longer than that of other similar drugs; 3. It has superior selectivity for beta 2-receptors; 4. It has anti-allergic effect and can inhibit immediate and delayed increase in airway reactivity; 5. It promotes respiratory cilia movement and increases respiratory defense ability; 6. It may prevent or alleviate the occurrence of exercise-induced asthma.

Rifampicin is a semi-synthetic broad-spectrum antibacterial drug of the rifamycin class, which has antibacterial activity against a variety of pathogenic microorganisms. The drug has a significant bactericidal effect on Mycobacterium tuberculosis and some non-tuberculous mycobacteria (including Mycobacterium leprae, etc.) both inside and outside the host cells. It has a good antibacterial effect on aerobic Gram-positive bacteria, including enzyme-producing strains of Staphylococcus aureus and methicillin-resistant strains, Streptococcus pneumoniae, other Streptococcus, Enterococcus, Listeria, Bacillus anthracis, Clostridium perfringens, Corynebacterium diphtheriae, anaerobic cocci, etc. It also has a high degree of antibacterial activity against aerobic Gram-negative bacteria such as Neisseria meningitidis, Haemophilus influenzae, and Neisseria gonorrhoeae. It also has a good effect on Legionella, and has an inhibitory effect on pathogens such as Chlamydia trachomatis, lymphogranuloma venereum, and psittacosis.

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As a histamine H1 receptor antagonist, this product can counteract the capillary dilation caused by allergic reactions, reduce the permeability of capillaries, and relieve wheezing caused by bronchial smooth muscle contraction. This product has a long-lasting antihistamine effect and also has a significant central inhibitory effect, which can increase the effects of anesthetics, analgesics, hypnotics and local anesthetics. This product is mainly metabolized in the liver.