Cephalexin Tablets
Function and Efficacy
Cephalexin is a first-generation cephalosporin with an antibacterial spectrum similar to that of cephalothin, but its antibacterial activity is poorer than that of the latter. Except for Enterococcus and methicillin-resistant Staphylococci, most strains of Streptococcus pneumoniae, hemolytic Streptococcus, and Staphylococcus aureus that produces or does not produce penicillinase are sensitive to this product. This product has a good antibacterial effect on Neisseria, but Haemophilus influenzae is less sensitive to this product; this product has a certain antibacterial effect on some Escherichia coli, Proteus mirabilis, Salmonella and Shigella. The remaining Enterobacteriaceae, Acinetobacter, Pseudomonas aeruginosa, and Bacteroides fragilis are resistant to this product. Fusobacterium and Veillonella are generally sensitive to this product, and anaerobic Gram-positive cocci are moderately sensitive to this product.
Ingredients
The main ingredient of this product is: Cephalexin. Its chemical name is: (6R,7R)-3-methyl-7-[(R)-2-amino-2-phenylacetylamino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate. Molecular formula: C16H17N3O4SH2O Molecular weight: 365.41
| Name | Description | Content | CAS NO. | Manufacturer |
|---|---|---|---|---|
| CephalexinIngredients |
Cephalexin is a first-generation cephalosporin, which is sensitive to most strains of Streptococcus pneumoniae, hemolytic Streptococcus, and Staphylococcus aureus that produces or does not produce penicillinase, has a good antibacterial effect on Neisseria, and has a certain antibacterial effect on some Escherichia coli, Proteus mirabilis, Salmonella and Shigella. Enterococci, methicillin-resistant Staphylococcus aureus, Haemophilus influenzae, other Enterobacteriaceae, Acinetobacter, Pseudomonas aeruginosa, Bacteroides fragilis are resistant to this product, Fusobacterium and Veillonella are generally sensitive to this product, and anaerobic Gram-positive cocci are moderately sensitive to this product. More |
15686-71-2 | 33 |
Appearance
This product is a sugar-coated tablet or a film-coated tablet, which appears white or creamy yellow after removing the coating.
Indication
It is suitable for acute tonsillitis, pharyngitis, otitis media, sinusitis, bronchitis, pneumonia and other respiratory tract infections, urinary tract infections and skin and soft tissue infections caused by sensitive bacteria. This product is an oral preparation and should not be used for severe infections.
Usage and Dosage
Adult dose: Oral, 250-500 mg (1-2 tablets) once, 4 times a day, the highest dose is 4g (16 tablets) a day. Patients with impaired renal function should reduce the dosage according to the degree of renal function impairment. Patients with simple cystitis, skin and soft tissue infections and streptococcal pharyngitis should take 500 mg (2 tablets) every 12 hours. Children's dose: Oral, 25-50 mg/kg per day, 4 times a day. Patients with skin and soft tissue infections and streptococcal pharyngitis should take 12.5-50 mg/kg once, twice a day.
Adverse Reactions
1. Nausea, vomiting, diarrhea and abdominal discomfort are more common. 2. Allergic reactions such as rash and drug fever. 3. Nervous system reactions such as dizziness, diplopia, tinnitus, convulsions, etc. 4. Transient renal damage may occasionally occur during the use of this product. 5. Occasionally, patients have elevated serum aminotransferase and positive Coombs test. Hemolytic anemia is rare, and neutropenia and pseudomembranous colitis have also been reported.
Precautions
It is contraindicated in patients who are allergic to cephalosporins or have a history of anaphylactic shock or immediate reaction to penicillin.
Special Population Medication
Precautions for children: Not yet clear. Precautions for pregnancy and lactation: This product crosses the placenta, so pregnant women should use it with caution; this product can also be excreted through breast milk. Although there are no reports of problems with the use of cephalosporins in lactating women, it is still necessary to weigh the pros and cons before using it. Precautions for the elderly: Not yet clear.
Drug Interactions
1. When used in combination with cholestyramine, the average blood concentration of cephalexin can be reduced. 2. Probenecid can delay the renal excretion of this product. There are also reports that probenecid can increase the excretion of this product in bile.
Storage
Keep away from light, seal tightly and store in a cool dark place.
Packaging Specification
0.25g
Validity Period
24 months
Manufacturer
Harbin Pharmaceutical Group Co., Ltd. GENERAL Pharm. FACTORY
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Founded in:
1994-05-19 -
Address:
No. 388, Hahei Highway, Hulan District (production base No. 109, Xuefu Road, Nangang District, No. 1, Junmin Street, Xiangfang District) -
Tax NO.:
912301008280277137 -
Registered Funds:
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Website:
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Email: