Home HealthTopics Health Centers Reference Library Research
Join us on Facebook Join us on Facebook Share on Facebook


Typical Length of Time for Reaction to Occur?



What would be the expected length of time after taking a dose for an allergic reaction to occur to a medicine? If one drug (day 8 of 2-daily dose Amoxicillin) was taken at 10pm and another (infant Tylenol) at 8am with hives beginning to appear by 830am, what would be considered the more likely culprit of the reaction?


Thank you for visiting NetWellness. On this site, NetWellness experts try to answer general questions about health. Only a health professional performing a thorough clinical exam is able to evaluate your symptoms. However, NetWellness may have some general information available that you can access through our search feature. Feel free to write back if you still have questions or need an explanation.

For more information:

Go to the Allergies health topic, where you can:

Response by:

NetWellness Staff