Since your young man is vomiting
, he is not able to keep anything down. This includes medicine. I have done some investigation and discovered that P-500 does not come in suppository form.
I would recommend that you obtain acetaminophen
suppositories to replace the oral medicine. Should the suppository be soft, then place it in the refrigerator (NOT freezer) for 30minutes before administering.
Place a small amount of Vaseline on the end to be inserted. Push with a finger (using a disposable glove) until all of the suppositories is within his rectum
Take your finger out and hold his buttocks together for a couple minutes. His dose should be 320-400 mg by rectum every 4-6 hours. If he needs this med.
For more than2-3 days, he ought to be seen by his paediatrician. Sometimes if you give him nothing by mouth for 6-8 hours you allow time for his stomach to settle down.
Then, if there has been no vomiting, begin with a few teaspoons of crushed ice. Repeat in another hour. Next offer 2-3 oz of apple or pear juice.
Then you can advance fluids as he desires. When he says he is hungry, let him eat anything he wishes.
Hope I have answered your query. Let me know if I can assist you further.