White oblong pill with the imprint S500 on one side and nothing on the other?

The description of this pill number gets confusing as the actual number is S500, not 5500. The S looks a lot like the 5, however the top of letter is round and the number is straight. This pill is Acetaminophen 500 for body aches and to reduce fever.

I know this is an old post, the answer may help members of our community now and in the future.

Pill with imprint S 500 is White, Oval and has been identified as Acetaminophen 500 mg. It is supplied by Himprit Pharmachem PVT LTD.

Acetaminophen is used in the treatment of sciatica; muscle pain; eustachian tube dysfunction; pain; fever and belongs to the drug class miscellaneous analgesics. Risk cannot be ruled out during pregnancy. Acetaminophen 500 mg is not a controlled substance under the Controlled Substances Act (CSA).

Source: Drugs.com

I have this same pill but I no longer have the bottle. I think is it acetaminophen 500 mg. But I am not POSITIVE.

Headache medication

It’s acetaminophen 500 mg which is the same as Tylenol 500 mg

i just found your question because i was searching the exact same thing - couldn't find it either - then... went to my medicine bin in the bathroom - to see what i could find - it's 500mg acetaminophen - generic version i got from wal mart!!!

i was so concerned - that I actually needed to take if afterward to get rid of my headache!! Hope this helps!!

Googled it and this was found: KOS 500

Generic Name: niacin

Pill imprint KOS 500 has been identified as Niaspan ER 500 mg.

is used in the treatment of high cholesterol; niacin deficiency; hyperlipoproteinemia type v, elevated chylomicrons vldl; hyperlipoproteinemia; hyperlipoproteinemia type iv, elevated vldl (and more), and belongs to the drug classes miscellaneous antihyperlipidemic agents, vitamins. Risk cannot be ruled out during pregnancy.

500 mg is not subject to the Controlled Substances Act.

Hope this helps? Or please take it across to a pharmacy for identification, sorry could not be of much help!