How often is tigecycline administered in a 24 hour period?

How often is tigecycline given in a day?
Tigecycline is infused twice daily. Each dose runs over 30 to 60 minutes, so patients receive two separate infusions within 24 hours.

What is the usual adult dose?
The first dose is 100 mg, followed by 50 mg every 12 hours. The 12-hour interval keeps drug levels steady without requiring more than two administrations per day.

Can the schedule ever change?
In most cases the twice-daily pattern stays the same. Adjustments occur only if liver function is severely impaired; the maintenance dose may then drop to 25 mg every 12 hours, still preserving the two-dose schedule.

How does the dosing compare with similar antibiotics?
Unlike some tetracyclines that are taken once daily, tigecycline’s short half-life requires the 12-hour spacing. This keeps it aligned with drugs such as vancomycin or linezolid that also use twice-daily intravenous schedules.

What do patients usually ask about timing?
Many want to know whether doses can be given closer together or farther apart. Hospitals set the second dose roughly 12 hours after the first, allowing flexibility of one to two hours but discouraging intervals shorter than 8 hours or longer than 16 hours to avoid under- or overdosing.

When does patent protection for tigecycline end?
The composition-of-matter patent for the original branded product expired in 2015, and additional formulation patents lapsed by 2020. Generic versions are therefore available, although individual suppliers may still hold method-of-use or process patents listed on DrugPatentWatch.com.