Report: MLB warns players about over-the-counter sex-enhancement pills

Major League Baseball sent out a memo to warn players about ingesting over-the-counter sexual-enhancement pills, as their use can lead to violations of its drug policy, sources told ESPN's Jeff Passan.

The use of over-the-counter sex pills, often purchased at gas stations, is reportedly common among baseball players.

"Sexual or male enhancement products present a very real risk for drug-tested players," the memo reads, per Passan, "and the high likelihood for contamination or unidentified ingredients in these products underscores the importance of consuming only those products that are NSF Certified for Sport."

The memo was apparently sent to the league after at least two players were suspended for the use of performance-enhancing drugs this season. The banned players claimed the substances found in their urine came from these products.

MLB reportedly suggested that players who "suffer from erectile dysfunction or other legitimate issues related to sexual performance ... speak to a licensed physician about the various prescription medications (e.g., Viagra, Cialis, Levitra) available to treat those conditions."

Over-the-counter sex-enhancement pills are part of an unregulated supplement industry worth more than $30 billion a year, Passan notes.