Depends: Depends on a number of factors, such as The dose of aspirin, the specific speed of metabolism and genetics of the patient, and other things such as food in the stomach and gut, etc. Generally speaking however, within about 30-60 minutes one should begin to feel the effects of an analgesic such as aspirin. An appropriate one-time dose would be 650-1000 mg, or 325-500mg if repeated.
Answered 7/24/2018
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Consult Your Doctor: Your reasons for giving Aspirin to your son are not stated. Due to the association with Reye Syndrome, Aspirin should NOT be given to children under age 18 years. Reye Syndrome is a life-threatening disorder involving multiple organs. particularly the neurologic system. It is fatal in 30-40% of cases. It occurs after viral infections such as Influenza, Chickenpox and is linked to Aspirin use.
Answered 5/3/2015
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