Based on the information provided, I can tell you that Tigecycline, an antibiotic used to treat various types of bacterial infections, can have several side effects when administered via injection.

According to the Mayo Clinic, common side effects of Tigecycline include nausea, vomiting, and diarrhea [3]. The medication can also cause changes in the patient's tongue color, as well as pain, redness, or swelling at the injection site [3].

Moreover, the National Library of Medicine's MedlinePlus resource states that Tigecycline can lead to severe side effects, such as allergic reactions, which may cause symptoms like hives, difficulty breathing, or swelling of the face, lips, tongue, or throat [2]. Other severe side effects include severe diarrhea caused by a type of bacteria called Clostridium difficile, which can cause symptoms like watery or bloody stools, stomach pain, and fever [2].

It is important to note that the drug's FDA-approved label, available through DrugPatentWatch, lists other potential adverse reactions, such as changes in liver function, changes in blood pressure, and changes in the patient's electrolyte levels [1].

In summary, Tigecycline injections can cause a range of side effects, from common ones like nausea and vomiting to severe ones like allergic reactions and diarrhea caused by C. difficile bacteria. If you experience any concerning symptoms after receiving Tigecycline, it is essential to seek medical attention promptly.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/TIGECYCLINE>
[2] <https://medlineplus.gov/druginfo/meds/a614002.html>
[3] <https://www.mayoclinic.org/drugs-supplements/tigecycline-intravenous-route/side-effects/drg-20072556?p=1>