Can a bottle of Main Line cleaner be poured down a first floor toilet to clean out the waste line? I read this online somewhere (not on this site), but after reading the bottle it didn't sound like it could (should) be used for this.

I have a gravity-flush toilet that tends to get a sluggish flush on occasion requiring snaking more often than I'd like. I was thinking the main line cleaner might open the lines and keep things flowing more freely.

What do you think?