Side Effects of Using Allegra and Claritan To Treat Hives

The most common prescription antihistamines used to treat Acute Hives are Allegra and Claritin, and both medications carry possible side effects. Allegra may cause nausea, vomiting, weakness and sleepiness, while Claritin may trigger an allergic reaction (difficulty breathing, closing of the throat, swelling of the lips/tongue/face, or hives), an irregular heartbeat, and seizures. It is interesting to note the irony in the fact that Claritin, which is prescribed to treat Hives, lists Hives as a possible side effect.

As disconcerting as that fact may be, even worse are the side effects associated with the most popular oral corticosteroid, Prednisone. Below is the list of symptoms that you should tell your doctor about it they are severe or do not subside:

  • headache
  • dizziness
  • difficulty falling asleep or staying asleep
  • inappropriate happiness
  • extreme changes in mood
  • changes in personality
  • bulging eyes
  • acne
  • thin, fragile skin
  • red or purple blotches or lines under the skin
  • slowed healing of cuts and bruises
  • increased hair growth
  • changes in the way fat is spread around the body
  • extreme tiredness
  • weak muscles
  • irregular or absent menstrual periods
  • decreased sexual desire
  • heartburn
  • increased sweating

In addition to the above side effects, you should call your doctor immediately if, while taking Prednisone, you experience:

  • vision problems
  • eye pain, redness, or tearing
  • sore throat, fever, chills, cough, or other signs of infection
  • seizures
  • depression
  • loss of contact with reality
  • confusion
  • muscle twitching or tightening
  • shaking of the hands that you cannot control
  • numbness, burning, or tingling in the face, arms, legs, feet, or hands
  • upset stomach
  • vomiting
  • lightheadedness
  • irregular heartbeat
  • sudden weight gain
  • shortness of breath, especially during the night
  • dry, hacking cough
  • swelling or pain in the stomach
  • swelling of the eyes, face, lips, tongue, throat, arms, hands, feet, ankles, or lower legs
  • difficulty breathing or swallowing
  • rash
  • Hives
  • itching

Prednisone may also slow growth and development in children, increase your risk of developing osteoporosis, or contribute to your risk of developing a type of cancer called Kaposi’s sarcoma.