Here's something interesting I found on the Internet about clavulanic acid:

«Orally administered clavulanic acid significantly reduces measures of anxiety in male/female pairs of cotton-top tamarins. In addition, male tamarins showed a highly significant increase in sexual arousal as measured by the number of penile erections. The fact clavulanic acid has anxiolytic activity in the tamarin holds the promise that this drug may be an effective therapeutic for the treatment of anxiety disorders in humans.»

So, it treats ED and anxiety. This has to be the perfect solution to sexual performance anxiety!