Search Results 31-40 of 14464 for Histamine

  1. Mayo Clinic Q and A: Is it allergies or a sinus infection?

    This reaction happens when the immune system releases certain substances, such as histamine, into the bloodstream. This leads to allergy symptoms, which may ...

  2. Olopatadine (nasal route) - Mayo Clinic

    Olopatadine will also block the effects of histamine, which prevents the allergic symptoms. This medicine is available only with your doctor's prescription.

  3. Chronic hives - Symptoms and causes - Mayo Clinic

    The welts that come with hives are caused by the release of immune system chemicals, such as histamine, into your bloodstream. It's often not known why ...

  4. Symptoms Could Be Caused by Allergy Related to Snowy Weather - Mayo Clinic News Network

    However, when an allergic response develops, histamine can be released from the packets. That release can cause a wide variety of symptoms, such as itching, ...

  5. Mosquito bites - Diagnosis and treatment - Mayo Clinic

    Skeeter syndrome is the result of an allergic reaction to proteins in mosquito saliva. There's no simple blood test to detect mosquito antibodies in blood.

  6. Codeine, phenylephrine, and promethazine (oral route) - Side effects & dosage - Mayo Clinic

    Histamine can cause itching, sneezing, runny nose, and watery eyes. It can sometimes close up the bronchial tubes (air passages of the lungs) and make breathing ...

  7. Promethazine (rectal route) - Mayo Clinic

    Histamine can cause itching, sneezing, runny nose, and watery eyes. It can sometimes close up the bronchial tubes (air passages of the lungs) and make breathing ...

  8. Triprolidine, pseudoephedrine, and codeine (oral route) - Side effects & dosage - Mayo Clinic

    Histamine can cause itching, sneezing, runny nose, and watery eyes. Pseudoephedrine is a decongestant, which decreases nasal congestion by narrowing the blood ...

  9. Over-the-counter Allergy Medication a Safe First Step for Children with Symptoms

    Antihistamine drugs decrease allergy symptoms of the nose and eyes by blocking the effects of histamine. Over-the-counter antihistamine pills appropriate for a ...

  10. Latex allergy - Symptoms and causes - Mayo Clinic

    The next time there is a latex exposure, these antibodies tell the immune system to release histamine and other chemicals into the bloodstream. This process ...