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# Briciclin
## Overview
Briciclin is a glycylcycline antibiotic, a subclass of tetracyclines. It is administered intravenously and exhibits broad-spectrum activity against many Gram-positive, Gram-negative, and anaerobic bacteria, including some multidrug-resistant organisms.
## Primary Indications
* Complicated skin and skin structure infections (cSSSI)
* Complicated intra-abdominal infections (cIAI)
* Community-acquired bacterial pneumonia (CABP)
## Adult Dosing
* **cSSSI, cIAI, CABP:** 100 mg IV every 12 hours for the first dose, followed by 50 mg IV every 12 hours. Duration of treatment is typically 4 to 14 days depending on the indication and patient response.
## Pediatric Dosing
Dosing for pediatric patients is not established.
## Dose Adjustments
* **Hepatic Impairment:** No dose adjustment is required for mild to moderate hepatic impairment. Caution is advised in severe hepatic impairment.
* **Renal Impairment:** No dose adjustment is required for mild to moderate renal impairment (CrCl > 30 mL/min). For severe renal impairment (CrCl ≤ 30 mL/min), including patients on hemodialysis, the dose should be halved. Briciclin is not removed by hemodialysis.
## Contraindications
* Hypersensitivity to briciclin, tetracyclines, or any component of the formulation.
## Adverse Effects
* **Common:** Nausea, vomiting, diarrhea, constipation, headache, injection site reactions (phlebitis, pain, erythema).
* **Serious:** *Clostridioides difficile*-associated diarrhea (CDAD), hepatotoxicity, anaphylaxis, photosensitivity, tooth discoloration (in children < 8 years, though not indicated), and potentially increased mortality in certain patient populations (e.g., ventilator-associated pneumonia).
## Key Drug Interactions
* **Warfarin:** Monitor INR closely due to potential for increased anticoagulant effect.
* **Oral Contraceptives:** May decrease efficacy. Advise patients to use alternative or additional non-hormonal contraception.
* **Bactericidal Antibiotics:** Avoid concurrent use if possible, as briciclin is bacteriostatic.
* **Digoxin:** Monitor digoxin levels, as tetracyclines can increase serum digoxin concentrations.
## Monitoring
* Clinical signs and symptoms of infection.
* Renal and hepatic function (baseline and periodically).
* INR if on warfarin.
* Signs of *C. difficile* infection.
## Clinical Pearls
* Briciclin is administered as a 30-minute IV infusion.
* Due to potential for tooth discoloration, it is generally avoided in children under 8 years old.
* Patients should be advised to avoid excessive sun exposure and use protective measures due to photosensitivity.
* Consider the potential for increased mortality observed in some studies, particularly in patients with ventilator-associated pneumonia.
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*This information is intended for healthcare professionals. Always consult the most current prescribing information and local guidelines for definitive treatment decisions.*
