
Allergies - Symptoms and causes - Mayo Clinic
Aug 24, 2024 · Allergic reactions vary from person to person. They can range from minor irritation to a life-threatening emergency called anaphylaxis. While most allergies can't be cured, treatments can …
Respiratory syncytial virus vaccine (intramuscular route)
Aug 1, 2025 · This vaccine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and require immediate medical attention. Tell your doctor right away if you have a …
Drug allergy - Symptoms and causes - Mayo Clinic
Nov 9, 2024 · Overview A drug allergy is the reaction of the immune system to a medicine. Any medicine — over-the-counter, prescription or herbal — can trigger a drug allergy. However, a drug allergy is …
Pneumococcal 20-valent conjugate vaccine (intramuscular route)
Mar 1, 2025 · Description Pneumococcal 20-valent conjugate vaccine is an active immunizing agent used to prevent infection caused by certain types of pneumococcal bacteria (Streptococcus …
Lisinopril (oral route) - Side effects & dosage - Mayo Clinic
Dec 1, 2025 · This medicine may cause serious types of allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention.
Dexamethasone (oral route) - Side effects & dosage - Mayo Clinic
Description Dexamethasone provides relief for inflamed areas of the body. It is used to treat a number of different conditions, such as inflammation (swelling), severe allergies, adrenal problems, arthritis, …
Penicillin allergy - Diagnosis & treatment - Mayo Clinic
Sep 20, 2025 · Understand the importance of an accurate diagnosis for this type of allergy and the best practices for antibiotic treatment.
Shellfish allergy - Symptoms and causes - Mayo Clinic
Jul 2, 2024 · Reactions range from mild symptoms — such as hives or a stuffy nose — to severe and even life-threatening. If you think you have shellfish allergy, talk to your health care provider. Tests …
Milk thistle - Mayo Clinic
May 21, 2025 · Milk thistle is a plant named for the white veins on its large prickly leaves. One of the active ingredients in milk thistle called silymarin is extracted from the plant's seeds. Silymarin is …
Monosodium glutamate, also called MSG: Is it harmful? - Mayo Clinic
Monosodium glutamate, also called MSG, is used to make food taste better. Glutamate is a form of the amino acid glutamic acid. Both are naturally in food such as cheese, tomatoes, mushrooms and …