Doxycycline hyclate powder, Also known as doxycycline hydrochloride or doxycycline hydrochloride, it is a semi synthetic tetracycline antibiotic. Presented as a crystalline solid ranging from yellow to yellow green. Its particles are delicate, odorless, bitter in taste, and have a certain degree of hygroscopicity. Has excellent water solubility. Its solubility in water can reach 50mg/mL, and the dissolved solution appears clear and yellow green. In addition, it is easily soluble in methanol, but slightly soluble in ethanol and acetone. This solubility characteristic makes it easy to handle during the preparation process of the formulation, while also providing convenience for its absorption and distribution in the body. Due to its wide antibacterial spectrum and excellent biological activity, it has been widely used in the medical field. Wide antibacterial spectrum, effective against Gram positive cocci and negative bacilli. The antibacterial effect is about 10 times stronger than tetracycline, and it is still effective against tetracycline resistant bacteria. Mainly used for respiratory infections, chronic bronchitis, pneumonia, and urinary system infections, it can also be used for rash, typhoid fever, and mycoplasma pneumonia. As a broad-spectrum antibiotic and metalloproteinase inhibitor, it has a wide range of clinical applications and significant therapeutic effects. In the field of scientific research, it has also demonstrated its unique value, providing new ideas and methods for the development of new drugs and disease treatment.
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Chemical Formula |
C22H25ClN2O8 |
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Exact Mass |
480 |
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Molecular Weight |
481 |
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m/z |
480 (100.0%), 482 (32.0%), 481 (23.8%), 483 (7.6%), 482 (2.7%), 482 (1.6%) |
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Elemental Analysis |
C, 54.95; H, 5.24; Cl, 7.37; N, 5.83; O, 26.62 |
Clinical applications
Doxycycline hyclate powder, Also known as doxycycline hydrochloride or doxycycline hydrochloride, it is a semi synthetic tetracycline antibiotic. As a broad-spectrum antibacterial drug, it holds a pivotal position in the pharmaceutical field due to its unique pharmacological properties and wide range of applications.
As an orally effective broad-spectrum antibiotic, it is mainly used to treat various infections caused by sensitive bacteria. Its antibacterial spectrum is extensive, covering Gram positive cocci and negative bacilli, as well as various pathogens such as Mycoplasma, Chlamydia, and Rickettsia. In clinical practice, it is often used to treat the following diseases.
Respiratory infections, such as pneumonia, tonsillitis, pharyngitis, etc., are caused by sensitive bacteria such as Mycoplasma pneumoniae and Haemophilus influenzae. It can effectively inhibit the growth of these pathogens, alleviate inflammatory reactions, and promote patient recovery.
Urinary tract infections, such as urethritis, cystitis, pyelonephritis, etc., are caused by sensitive bacteria such as Escherichia coli and Staphylococcus. It can quickly penetrate the cell membrane and bind to the A site of the bacterial ribosome 30S subunit, preventing the synthesis of bacterial proteins and achieving antibacterial purposes.
In addition, it can also be used to treat diseases such as typhus, Qiangchong disease, and mycoplasma pneumonia. In long-term treatment practice, it has been found that this substance is a good antibacterial agent, with a wide antibacterial spectrum, strong antibacterial effect, long lasting effect, and fast absorption after oral administration. It is mainly slowly excreted by the kidneys.
Biliary tract infection: such as cholecystitis, cholangitis, etc., caused by sensitive bacteria such as gram-negative bacteria. It has a high concentration in the biliary system, which can effectively kill pathogens and alleviate clinical symptoms of patients.
Skin and soft tissue infections, such as cellulitis, carbuncle, abscess, etc., are caused by sensitive bacteria such as Staphylococcus aureus and Streptococcus. It can inhibit the growth of these pathogens, alleviate inflammatory reactions, and promote wound healing.
Scientific research
Anti tumor research
In recent years, an increasing number of studies have shown that this substance has anti-cancer cell proliferation activity. In vitro studies, it can inhibit the growth and proliferation of a variety of tumor cells, such as glioma cells, breast cancer cells, etc. This provides new ideas and methods for the development of anti-tumor drugs.
Anti inflammatory research
It also has certain anti-inflammatory effects. It can inhibit collagen synthesis, proliferation, and migration, as well as suppress inflammatory reactions induced by Lyme disease. These studies indicate that the substance has potential application value in the field of anti-inflammatory.
Microbiological research
As a broad-spectrum antibiotic, it has also been widely applied in microbiological research. It can be used to screen microbial strains that are sensitive to products, providing important clues for studying the physiological characteristics and metabolic pathways of microorganisms.
Other uses
Animal husbandry
In animal husbandry, it can be used to treat various infectious diseases of animals, such as pneumonia, mastitis, endometritis, etc. Its wide antibacterial spectrum, strong antibacterial effect, and long duration of action make it have broad application prospects in animal husbandry.
Environmental protection
It can also be used for water treatment in the field of environmental protection. It can effectively inhibit the growth of bacteria and algae in water, and prevent the occurrence of eutrophication in water bodies. At the same time, it also has a certain deodorizing effect, which can improve the odor and color of water bodies.
history of development
Oxytetracycline hydrochloride, also known as doxycycline hydrochloride or doxycycline, is a second-generation tetracycline antibiotic. Its development has witnessed the wisdom and innovation of human beings in combating bacterial infections, leaving a profound mark in the fields of medicine and veterinary medicine.
In 1948, Dr. Benjamin Duggar, a plant physiologist at Cornell University in the United States, isolated the first tetracycline antibiotic, streptomycin, from soil parasites of Streptomyces coelicolor, marking the beginning of research on tetracycline antibiotics.
Subsequently, scientists successively isolated oxytetracycline and tetracycline from soil actinomycetes. These natural products showed good therapeutic effects on Gram positive and negative bacteria, as well as infections caused by intracellular mycoplasma, chlamydia, and rickettsia, laying a solid foundation for the development of semi synthetic tetracycline drugs in the future.
The 1970s and 1980s were the golden period for the development of semi synthetic tetracycline drugs. Scientists have successfully synthesized metoprolol by halogenated and dehydrated the C6 position of oxytetracycline, and further structurally modified it to obtain doxycycline with significant stability and pharmacological activity. This innovation not only improves the lipid solubility of the drug, making it easier to penetrate cell membranes, but also enhances its distribution and antibacterial effect in the body. The successful development of doxycycline marks a new stage of development for tetracycline antibiotics.
In 1967, it was officially developed and rapidly put into industrial production. Its production process uses oxytetracycline base as raw material, which is obtained through multiple reactions such as chlorination, dehydration, hydrogenation, free base conversion, and salt formation. Among them, the preparation of hydrochloride doxycycline dehydrate is a key step in the synthesis reaction, which directly affects the yield and impurity content of the raw material drug production. With the continuous optimization and improvement of production processes, both quality and output have been significantly improved, providing strong guarantees for its widespread clinical application.
Frequently Asked Questions
What is the drug doxycycline hyclate used for?
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Doxycycline is in a class of medications called tetracycline antibiotics. It works to treat infections by preventing the growth and spread of bacteria. It works to treat acne by killing the bacteria that infects pores and decreasing a certain natural oily substance that causes acne.
Is doxycycline a very strong antibiotic?
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Extensive clinical investigation has shown doxycycline to be highly effective in infections of the respiratory tract, including atypical pneumonias; skin and soft tissue; genitourinary infection including gonorrhea, syphilis, nonspecific urethritis, and prostatitis; intraabdominal infection due to trauma, sepsis, or ...
How to take doxycycline for sinus infection?
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For infections:
Adults-100 milligrams (mg) every 12 hours on the first day, then 100 mg once a day or 50 to 100 mg every 12 hours.
Children 8 years of age or older weighing 45 kilograms (kg) or more-100 mg every 12 hours on the first day, then 100 mg once a day or 50 to 100 mg every 12 hours.
How quickly will doxycycline work for sinus infection?
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Doxycycline usually starts working within 2 to 3 days, with most people feeling better in 3 to 5 days, but the infection takes longer to clear, often requiring a full 5- to 10-day course to eradicate the bacteria and prevent resistance. You should see reduced fever, pain, and congestion within a week, but always finish the entire prescription even if symptoms disappear earlier.
What should you avoid when taking doxycycline?
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Some foods you should avoid taking with doxycycline include milk, butter, cheese, eggs, kale, and spinach. If consuming any of these foods, eat or drink them two hours before or four hours after you take doxycycline.
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