Over-the-Counter Treatment

• Over-the-counter aspirin is generally used in adults to conquer headaches, toothaches, menstrual pain, joint pain, muscle aches and reduce fever, according to MedlinePlus. It can also be used by people at risk of experiencing a heart attack or stroke to thin their blood, and those who recently had a heart attack or stroke. Aspirin is available as a generic medication or in brand names such as Bayer.
  
  

Prescription Treatment

• Prescription aspirin is usually stronger than over-the-counter formulas, according to MedlinePlus. Prescriptions are usually offered for treatment of conditions such as rheumatoid arthritis, recent heart attack or stroke, or severe and chronic pain. It can also be prescribed to combat other immune system conditions such as lupus.
  
  

Precautions

• Children and teenagers should not take aspirin because it can cause a potentially fatal disease known as Reye's syndrome, according to MedlinePlus. The disease causes a serious buildup of fat on the brain and other organs, and youth with chicken pox or the flu are especially susceptible to Reye's syndrome. People taking other pain relievers such as ibuprofen or pregnant or nursing women should also consider avoiding aspirin.
  
  

Possible Side Effects

• Any form of aspirin, whether by itself or combined with another medication, has the risk of side effects or allergic reaction, according to MedlinePlus. Possible side effects are as follows: nausea, vomiting, stomachache and heartburn. Serious symptoms requiring immediate medical attention include the following: hives, itching, breathing problems, vomiting black matter, fast heartbeat, black or bloody stools, and cold, clammy skin.
  
  

Overdose

• Overdose is also possible when taking any form of aspirin, according to MedlinePlus. Possible signs of overdose are as follows: changes of consciousness, double vision, fear, nervousness, fever, decreased urination, confusion, unusually elevated mood, hallucinations, seizures and drowsiness.
  
  

Cost

• Insurance plans may cover all or part of the cost of aspirin and other products containing the drug, especially if prescribed by a doctor. Patient assistance programs may also be available for those who are uninsured and have a low income. As of September 2009, the self-pay price for 500 generic 81 mg aspirin tablets was about $5.50. Brand name aspirin such as Bayer cost about $10 for 100 extra strength pills. Prescription aspirin cost approximately $12 for 100 325-mg tablets.