Spectinomycin clinical pharmacology

TROBICIN Sterile Powder is rapidly absorbed after intramuscular injection. A single, two-gram injection produces peak serum concentrations averaging about 100 mcg/mL at one hour; a single, four-gram injection produces peak serum concentrations averaging 160 mcg/mL at two hours. Average serum concentrations of 15 mcg/mL for the two-gram dose and 31 mcg/mL for the four-gram dose were present eight hours after dosing.^[1]

Adapted from the FDA Package Insert.