Acute Phase Reaction

July 26, 2014 Leave your thoughts

An Acute Phase Reaction can occur the first time a person is exposed to a new class of medication.  With each subsequent dose, half as many people have the reaction.  The symptoms are like mild flu for 3 to 5 days.  The treatment is lots of fluids, and Tylenol (Acetaminophen) if needed.

Persons who have never taken any bisphosphonate before, can experience an acute phase reaction the first time they take Reclast (Zolendronate in osteoporosis dose).  This happens in about one-third of persons who have not taken Fosamax (Alendronate), Boniva (Ibandronate), Actonel (Risedronate), or Atelvia (enteric coated Risedronate) before their first dose of Reclast.  This happens in about one-sixth of persons after their second dose.  Third dose is down to one-twelfth.

Acute phase reaction is a significant nuisance.  However, a Fracture is a significant problem.  Reclast will reduce Fracture Risk by more than half compared to no osteoporosis medication at all.  See the visuals for fracture risk in women and men without osteoporosis medication.  Remember to check for good enough kidney funtion (GFR at least 45) before each dose.

It’s all about avoiding Fractures.

Jay Ginther, MD

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