How does tigecycline change transaminase (ALT/AST) levels during treatment?
Tigecycline can raise liver enzyme markers, including transaminases, over the course of therapy. In the clinical experience summarized in the provided safety information, increases are described as occurring during treatment rather than only at baseline, consistent with a potential for drug-related liver enzyme elevations. [1]
When do transaminase elevations typically show up after starting tigecycline?
The available information frames transaminase elevations as treatment-emergent (i.e., they occur during the period of receiving tigecycline), indicating they can appear after therapy begins. It does not provide a specific day-by-day timeline for onset. [1]
Do transaminase levels improve after stopping tigecycline?
The provided material addresses liver test elevations in the context of tigecycline exposure but does not give a detailed time-to-improvement after discontinuation. [1]
How often are ALT/AST elevations reported with tigecycline?
The safety information indicates that transaminase elevations occur and are part of the reported laboratory changes associated with tigecycline, but it does not include specific incidence percentages in the excerpt provided. [1]
What pattern of liver tests is associated with tigecycline?
The key laboratory finding described is transaminase elevation (ALT/AST). The provided information does not specify a distinctive AST-vs-ALT dominance or a full pattern across bilirubin/alkaline phosphatase in the excerpt shown. [1]
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Sources
[1] https://www.accessdata.fda.gov/drugsatfda_docs/label/2018/022564s026lbl.pdf