The CN Internal Medicine team determines who needs injectables. Some medications are only given by injection. Or you may need an injectable because of poor tolerance to the oral form of the medication. Common medication injectables include: Vaccines Vaccines are injections that build up your immunity to contagious diseases. CN Internal Medicine provides many vaccinations adults need throughout life, including vaccines for the flu, COVID-19, and human papillomavirus (HPV). Antibiotics Antibiotics fight off bacterial infections. Though you can take most antibiotics by mouth, in some situations, the team will recommend you receive an antibiotic by injection. You’ll need an injectable antibiotic if you have a severe infection that needs to be cleared up quickly. Corticosteroids Corticosteroid injections are given to quickly reduce inflammation or allergic reaction. Allergy shots CN Internal Medicine offers immunotherapy to treat allergies. Immunotherapy is a series of shots given over time that desensitizes your immune system to your allergen. Hormones Testosterone is sometimes given by injection. Vitamin B12 CN Internal Medicine also provides vitamin B12 injections. Vitamin B12 is an essential nutrient found in animal foods, not a medication. Some people develop anemia because they can’t absorb vitamin B12 from food or supplements and must get it by injection.