Avoiding serotonin toxicity with 2-MMC and 4-MMC?
My girlfiend loves both of these and I'm wondering how long she should wait between doses to avoid serotonin toxicity. She usually takes between 150-300mg 2-MMC or 100-200mg 4-MMC and based on my research it seems like 2-MMC has such a negligible serotonergic effect that it can be taken once weekly at this dose range without any issue. On the other hand I've read that it'd be best to wait 2-4 weeks in between 4-MMC doses to avoid any kind of neurotoxicity.
Does this mean that she could take 2-MMC one week then 4-MMC the next as long as she takes a 2-4 week break after the 4-MMC before taking either 2- or 4-MMC again or could she take 2-MMC the week after without issue?
Also I'm curious if anyone has any experience combining the two. I've read that it isn't worth it and that it's best to just take a bit more of either per session without mixing them, is this true?
She's been taking both for about a year (either 2-MMC four times a month or 4-MMC once or twice a month) and has never felt any type of hangover, comedown or cravings from taking either of these at the dose ranges described above and she's never felt the desire to go beyond these dose ranges so it would seem like the addictive potential of either substance doesn't manifest at these dose ranges for her.