Tigecycline is not available over the counter at local pharmacies. It is a prescription medication that is used to treat various bacterial infections. Tigecycline is a broad-spectrum antibiotic that is usually administered intravenously in a hospital setting under the supervision of a healthcare provider. It is important to consult a healthcare professional to determine if tigecycline is the appropriate treatment for a specific infection and to obtain a prescription for this medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/TIGECYCLINE
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1426172/
[3] https://pubmed.ncbi.nlm.nih.gov/16863487/