Common Adverse Reactions to Tigecycline
Tigecycline, an intravenous glycylcycline antibiotic used for complicated skin/skin structure infections and intra-abdominal infections, causes nausea (26%), vomiting (18%), and diarrhea (13%) most frequently in clinical trials.[1][2]
Serious Adverse Reactions Patients Report
Serious risks include acute pancreatitis (elevated amylase/lipase), hepatotoxicity (increased liver enzymes), and hypersensitivity reactions like anaphylaxis or severe skin reactions (e.g., Stevens-Johnson syndrome).[1][2] Hypersensitivity occurs in under 1% but requires immediate discontinuation.[2]
How Long Do Side Effects Last?
Most gastrointestinal effects like nausea resolve within days after stopping treatment, but pancreatitis or liver issues may persist weeks and need monitoring.1 Infusion-related reactions (e.g., pain at site) are short-lived.[2]
What Happens with Overdose or Long-Term Use?
Overdose risks amplify nausea, vomiting, and liver enzyme elevation; no specific antidote exists—supportive care only.[1] Long-term use raises superinfection risk (e.g., C. difficile colitis) and mortality concerns in ventilator-associated pneumonia (not recommended).2
Why Do Some Patients Experience Increased Mortality?
FDA warnings note higher all-cause mortality (4% vs. 3% comparators) in meta-analyses, linked to tigecycline's lower blood levels and use in severe infections.2 Avoid in hospital-acquired pneumonia unless no alternatives.
Differences from Other Tetracyclines
Unlike doxycycline, tigecycline has higher GI upset but broader Gram-negative/anaerobe coverage; photosensitivity is rare compared to tetracyclines.1
[1]: https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/021821s021lbl.pdf (Tygacil Prescribing Information)
[2]: https://www.drugs.com/sfx/tigecycline-side-effects.html