Search Results 21-30 of 17826 for Antihistamine

  1. Hydroxyzine (oral route) - Side effects & dosage - Mayo Clinic

    Hydroxyzine is an antihistamine. It works by preventing the effects of a ... Some examples of CNS depressants are antihistamines or medicine for ...

  2. Levocetirizine (oral route) - Side effects & dosage - Mayo Clinic

    It is an antihistamine that works by preventing the effects of a substance ... Some examples of medicines that affect the CNS are antihistamines or ...

  3. Dust mite allergy - Diagnosis & treatment - Mayo Clinic

    Antihistamines. These medicines relieve itching, sneezing and runny nose. Antihistamine tablets you can get without a prescription include fexofenadine ...

  4. Mold allergy - Diagnosis & treatment - Mayo Clinic

    Azelastine is another antihistamine nasal spray and is available without a prescription (Astepro Allergy). Side effects of the nasal sprays can include a bitter ...

  5. Hydrocodone and chlorpheniramine (oral route) - Side effects & dosage - Mayo Clinic

    Chlorpheniramine is an antihistamine, which is used to relieve or prevent symptoms of an allergy. When hydrocodone is used for a long time, it may become ...

  6. Hives and angioedema - Diagnosis and treatment - Mayo Clinic

    The standard treatment for hives and angioedema is antihistamines that don't make you drowsy. ... A nonprescription oral antihistamine, such as loratadine ( ...

  7. Histamine (intradermal route) - Side effects & uses - Mayo Clinic

    An antihistamine medicine may be given before the histamine is injected to prevent a possible unwanted effect. Histamine is to be used only under the ...

  8. Carbinoxamine (oral route) - Side effects & dosage - Mayo Clinic

    This medicine is an antihistamine. Carbinoxamine is used in combination with ... Some examples of CNS depressants are antihistamines or medicine for ...

  9. Penicillin allergy - Diagnosis & treatment - Mayo Clinic

    You also may use an antihistamine that you can buy without a prescription. Antihistamines can block the immune system during an allergic reaction.

  10. Mayo Clinic Q and A: Treating seasonal allergies

    Using an over-the-counter antihistamine to combat seasonal allergy symptoms is a good first step. When that medication effectively controls symptoms, no ...