Supposed to be ritalin 2o's zs on one side and 790 with the splitter line imprinted only 1/4 the way up
What is this pill - with 'ZS 790' imprint?
- Asked
- 22 Dec 2010 by MIKEREWSE
- Updated
- 25 May 2012
- Topics
- ritalin, pill id
Answers (1)
Pill imprint SZ 790 has been identified as Methylphenidate hydrochloride 20 mg, which is a generic version of Ritalin.
https://www.drugs.com/imprints/sz-790-11265.html

Further Information
- Ritalin Information for Consumers
- Ritalin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Ritalin (detailed)
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