Recommended Treatment for Gonorrhea
For uncomplicated gonorrhea at all anatomic sites (urogenital, anorectal, pharyngeal), administer ceftriaxone 500 mg intramuscularly as a single dose, plus doxycycline 100 mg orally twice daily for 7 days if chlamydial coinfection has not been excluded. 1, 2
Primary Treatment Regimen
The CDC updated its recommendations in 2020, increasing the ceftriaxone dose from 250 mg to 500 mg based on:
- Stable ceftriaxone MICs in U.S. surveillance data (< 0.1% with elevated MICs) 2
- Rapid rise in azithromycin resistance (nearly 5% of isolates with MIC ≥ 2.0 mcg/mL by 2018) 2
- New pharmacokinetic/pharmacodynamic data supporting higher dosing 2
- Antimicrobial stewardship concerns about routine dual therapy 1, 2
The shift from azithromycin to doxycycline as the companion drug reflects the rising azithromycin resistance and addresses the extremely common chlamydial coinfection (40-50% of gonorrhea cases). 3, 4
Critical Site-Specific Considerations
Pharyngeal gonorrhea is significantly more difficult to eradicate than urogenital or anorectal infections, making ceftriaxone the only reliably effective treatment for pharyngeal sites. 3, 4
- Spectinomycin has only 52% efficacy for pharyngeal infections 3
- Gentamicin shows only 20% cure rate for pharyngeal gonorrhea 3
- The 500 mg ceftriaxone dose provides superior pharyngeal coverage compared to lower doses 2
Alternative Regimens (When Ceftriaxone Unavailable)
If ceftriaxone is not available:
- Cefixime 400 mg orally single dose PLUS azithromycin 1 g orally single dose 3, 4
- Mandatory test-of-cure at 1 week is required due to declining cefixime effectiveness 3, 5
For severe cephalosporin allergy:
- Gentamicin 240 mg IM single dose PLUS azithromycin 2 g orally single dose (100% cure rate in clinical trials, but poor pharyngeal efficacy) 3
- Azithromycin 2 g orally alone is an option but has lower efficacy (93%) and high gastrointestinal side effects 3, 4
What NOT to Do: Critical Pitfalls
Never use fluoroquinolones (ciprofloxacin, ofloxacin) for gonorrhea treatment due to widespread resistance. 6, 3, 4
Never use azithromycin 1 g as monotherapy—it has insufficient efficacy (only 93% cure rate). 3
Never substitute oral cephalosporins for ceftriaxone in pharyngeal infections—they have markedly inferior efficacy. 3, 4
Special Populations
Pregnant Women
- Use ceftriaxone 500 mg IM PLUS azithromycin 1 g orally 3, 4
- Never use quinolones or tetracyclines in pregnancy 3, 4
Men Who Have Sex With Men (MSM)
- Only use ceftriaxone-based regimens due to higher prevalence of resistant strains 3
- Do not use patient-delivered partner therapy due to high risk of undiagnosed coexisting STDs or HIV 3
Patients With Recent Foreign Travel
- Use only ceftriaxone-based regimens due to international spread of resistant strains, particularly from Asia 7
Partner Management
All sexual partners from the preceding 60 days must be evaluated and treated with the same dual therapy regimen. 3, 4
- Partners should receive treatment for both gonorrhea and chlamydia regardless of testing results 3
- Patients must avoid sexual intercourse until therapy is completed and both partners are asymptomatic 3
- Expedited partner therapy may be considered if partners' treatment cannot be ensured 3
Follow-Up and Test-of-Cure
Patients treated with the recommended ceftriaxone 500 mg plus doxycycline regimen do NOT need routine test-of-cure unless symptoms persist. 3, 4, 1
However, all patients should be retested 3 months after treatment due to high reinfection rates. 3, 4
Mandatory test-of-cure at 1 week is required for:
- Patients receiving cefixime-based regimens 3, 5
- Patients receiving azithromycin monotherapy 3
- Patients with persistent symptoms 3
Treatment Failure Management
If treatment failure is suspected:
- Obtain specimens for culture and antimicrobial susceptibility testing immediately 3, 4
- Report the case to local public health officials within 24 hours 3
- Consult an infectious disease specialist 3, 4
Recommended salvage regimens:
- Gentamicin 240 mg IM PLUS azithromycin 2 g orally (single dose) 3
- Ertapenem 1 g IM for 3 days 3
- Spectinomycin 2 g IM PLUS azithromycin 2 g orally (if available) 3
Most ceftriaxone treatment failures involve pharyngeal sites, not urogenital sites. 3
Rationale for Current Approach
The evolution from dual therapy with azithromycin to conditional dual therapy with doxycycline reflects:
- Antimicrobial stewardship priorities to limit unnecessary azithromycin exposure 1, 2
- Rising azithromycin resistance (nearly 5% of U.S. isolates by 2018) 2
- Stable ceftriaxone susceptibility in U.S. surveillance (< 0.1% with elevated MICs) 2
- Need to address chlamydial coinfection (present in 40-50% of cases) 3, 4
The increased ceftriaxone dose to 500 mg provides a safety margin against emerging resistance while maintaining single-dose convenience. 1, 2