OTC Pain Relievers and Fever Reducers

  • Pharmacy Author:
    Annette (Gbemudu) Ogbru, PharmD, MBA

    Dr. Gbemudu received her B.S. in Biochemistry from Nova Southeastern University, her PharmD degree from University of Maryland, and MBA degree from University of Baltimore. She completed a one year post-doctoral fellowship with Rutgers University and Bristol Myers Squibb.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Surprising Reasons You're in Pain Slideshow

What causes fever?

Most fevers last only a few hours or days and are not dangerous; however, they may cause a great deal of discomfort. A rectal temperature of greater than 101.8 F (38.8 C), an oral temperature of more than 100 F (37.8 C), or an armpit temperature of greater than 99 F (37.2 C) is considered significantly abnormal. Fevers are usually due to viral or bacterial infections; however, they also can be due to cancers, injury to tissue (for example, heart attacks), hyperthyroidism, other illnesses in which there is inflammation, and dehydration. Additionally, many different drugs have been reported to cause "drug fever."

Harmful effects of fever (for example, dehydration, changes in consciousness, seizures, or coma) are likely to occur at temperatures above 106 F. Lower fevers can be dangerous in persons with heart disease, since fever increases the effort required by the heart to pump blood.

Two percent to four percent of children between the ages of 6 months and 5 years (usually before age 3) with high fevers will experience febrile seizures; though these seizures generally last no more than 15 minutes. Moreover, children who experience febrile seizures have a higher risk of developing epilepsy later in life.

Medically Reviewed by a Doctor on 10/9/2015

Quick GuideChronic Pain: Causes, Solutions and Management

Chronic Pain: Causes, Solutions and Management
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