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Methods Used to Give Pain Relief Medicines:
Tablet or liquid:
These medicines cannot be used if nothing can be taken by mouth or if you are nauseated or
vomiting; sometimes these medicines can be given rectally (suppository form). There may be a delay
in pain relief, since you must ask for the medicine and wait for it to be brought to you; also, these
medicines take time to wear off.
Injections into skin or muscle:
The injection site is usually painful for a short time. Medicines given by injection are more expensive
than tablets or liquids and take time to wear off.