Remac - Click Pharma

Remac 1 Pc

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395 ৳
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Clarithromycin

Indications

Clarithromycin is indicated in-

  • Streptococcal pharyngitis
  • Sinusitis
  • Infective exacerbations of chronic bronchitis
  • Community-acquired pneumonia
  • Atypical pneumonia
  • Skin and soft tissue infection
  • Adjunct in the treatment of duodenal ulcers by eradication of H.pylori.

Therapeutic Class

Macrolides

Pharmacology

Clarithromycin acts by inhibiting microsomal protein synthesis in susceptible organisms mainly by binding to the donor site on the 50S subunit of the bacterial ribosome and preventing translocation to that site. Clarithromycin is active against most Gram-positive bacteria and Chlamydia, some Gram-negative bacteria and Mycoplasmas. Clarithromycin's activity is the same as, or greater than, that of Erythromycin in vitro against most Gram-positive bacteria. Clarithromycin is more acid-stable than Erythromycin and therefore, is better tolerated. Clarithromycin has twice the activity of Erythromycin against H. influenzae. Most species of Gram-negative bacteria are resistant to Clarithromycin because of failure to penetrate the target.

 

Dosage

Adults:

  • Pharyngitis / Tonsillitis 250 mg every 12 hours for 10 days.
  • Acute maxillary sinusitis 500 mg every 12 hours for 14 days.
  • Chronic bronchitis 250-500 mg every 12 hours for 7-14 days.
  • Pneumonia 250 mg every 12 hours for 7-14 days.
  • Uncomplicated skin & skin structure infections 250 mg every 12 hours for 7-14 days.
  • Community-acquired upper and lower respiratory tract infections 250-500 mg every 12 hours for 5-14 days.

Children:

  • Bodyweight under 8 kg: 7.5 mg/kg twice daily.
  • Bodyweight of 8-11 kg (1-2 years): 2.5 ml (Half teaspoonful) twice daily.
  • Bodyweight of 12-19 kg (3-6 years): 5 ml (One teaspoonful) twice daily.
  • Bodyweight of 20-29 kg (7-9 years): 7.5 ml (One & half teaspoonfuls) twice daily.
  • Bodyweight of 30-40 kg (10-12 years): 10 ml (Two teaspoonfuls) twice daily.

* চিকিৎসকের পরামর্শ মোতাবেক ঔষধ সেবন করুন'

Administration

Clarithromycin may be given with or without meals.

* চিকিৎসকের পরামর্শ মোতাবেক ঔষধ সেবন করুন'

Interaction

Theophylline: Concomitant use of Clarithromycin who are receiving Theophylline may be associated with an increase in serum Theophylline concentrations. Terfenadine: Clarithromycin may alter the metabolism of Terfenadine.

Contraindications

Hypersensitivity to Clarithromycin, Erythromycin, or any of the macrolide antibiotics. Patients receiving Terfenadine who have pre-existing cardiac abnormalities or electrolyte disturbances.

 

Side Effects

Clarithromycin is generally well tolerated. Side effects include nausea, vomiting, diarrhoea and abdominal pain. Stomatitis and glossitis have also been reported. Other side effects include headache, allergic reactions ranging from urticaria and mild skin reactions to anaphylaxis. Taste perversion may occur. There have been reports of transient central nervous system side effects including anxiety, dizziness, insomnia and hallucination.

Pregnancy & Lactation

The drug may be used in neonates and children in appropriate doses. Breast milk from mothers receiving Clarithromycin should not be given to infants until treatment is completed. There is as yet little experience in the treatment of pregnant patients and Clarithromycin is not recommended.

Precautions & Warnings

Clarithromycin is principally excreted by the liver and kidney. Caution should be taken in administering this antibiotic to patients with impaired hepatic and renal function. Prolonged or repeated use of Clarithromycin may result in an overgrowth of non-susceptible bacteria or fungi. If superinfection occurs, Clarithromycin should be discontinued and appropriate therapy should be instituted.

Overdose Effects

Reports indicate that the ingestion of large amounts of clarithromycin can be expected to produce gastro-intestinal symptoms. One patient who had a history of bipolar disorder ingested 8 grams of clarithromycin and showed altered mental status, paranoid behaviour, hypokalemia and hypoxemia. Adverse reactions accompanying overdosage should be treated by the prompt elimination of unabsorbed drug and supportive measures. As with other macrolides, clarithromycin serum levels are not expected to be appreciably affected by haemodialysis or peritoneal dialysis.

Storage Conditions

Store in a cool and dry place, protected from light & moisture. The reconstituted suspension must be used within 7 days if kept at room temperature and within 14 days when stored in a refrigerator. Keep out of reach of children.

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