Let's start at the top. For us the issue is WHY you're on those meds. I did, as I said before, look them up. What they are for (and their all very similar so why 3??) is quite an issue. Now, while you're on, you may well feel ok. Off, or (as is too common) if you miss a dose or three and you can feel fkin awful.
Now Sarms, inc the one you wanna take, are not aggressive like some (a few) roids are. But nevetheless you were concerned enough to ask and we're concerned enough to consider our replies. So, such as it is, we'd prefer you to be OFF these meds before using a Sarm. Not off cos we say so but off cos you no longer need them.
We've had posts in the past from guys on such meds. In one case the member had been on them 10+ years. Issues starting from aged 15 and he was on so many meds he was bloated. He also had a bunch of sides from the meds themselves. It becomes hard to say 'so go ahead' when he's got all that going on and then wants to add another drug too.
If I was being brutal and wasn't trying to help I'd say 'we've a guy here on meds for psychosis issues wanting to take a PED'. It's a NO. The best thing to do might be to ask the doc who writes your scripts.