Over a period of about 5 years, the SSRIs I've been on have included Prozac, Citalopram and Sertraline. In the early stages (for probably the first month or two) try not to take anything, and if you do, exercise
extreme caution. To be honest, you should exercise extreme caution anyway
In my experience, SSRIs & Alcohol = get drunk really fast to a ridiculous extent. For example, where I would have normally been tipsy after 4 pints of 4% lager (I'm only little), on SSRIs this much got me pretty hammered. Because SSRIs sometimes leave me feeling nauseous anyway, drinking usually increased the chance that I would vomit. Maybe that's just me.
The Psychedelics I tried have generally been fine. The ones I tested out included 2Cs, LSD, some NBOMEs and Mushrooms. I do not recall any diminished effects, though at the time I was relatively inexperienced in using Psychedelics.
MDMA, with significantly reduced doses, has also generally been fine, but with extremely diminished effects to the point at times it wasn't worth it - however,
there was an incident where I was dangerously close to Serotonin Syndrome, this was (I believe) caused by the interaction between the SSRI (Prozac, but I can't see this being any different for other SSRIs), MDMA and a small amount of Mephedrone.
Mixing stims on an SSRI = bad idea. Lesson definitely learnt.
I experienced none of the pleasant effects others have reported on Mephedrone alone when I was on Prozac - there was only mild stimulation, and nothing that came close to euphoria. Again,
wouldn't advise, risk of SS.
I have experienced no problems with using a variety of Dissociatives with SSRIs, including Ketamine (and a couple of its analogues) 3 & 4-MeO-PCP, Methoxphenidine, Diphenidine and Nitrous Oxide.
However this does not include DXM - The effect of DXM when using SSRIs, even in large doses (do not advise, obviously), was minimal, if any, and the body load was unpleasant.
There would also be an increased risk of Serotonin Syndrome - I was extremely lucky not to have ended up in a dangerous situation, so I would strongly advise against doing this.
The effects of the benzos I tried in conjunction with an SSRI (etizolam, valium, xanax), were not affected much while using SSRIs - however I was more sedated when using them in conjunction with Sertraline.
The positive effects of the Opiates/Opioids that I have tested in conjunction with SSRIs (Oxycodone, Dihydrocodeine, Fentanyl, Morphine, Codeine, AH-7921, Kratom) were diminished somewhat, while the negative effects (nausea and itching) generally remained the same.
I have combined Tramadol with SSRIs before, however it was at reduced dosages and
I would still not recommend it due to the increased risk of Serotonin Syndrome, for the sake of not a great deal of bang for your buck. It's just not worth the risk.
It might seem obvious, but for whichever drugs you plan to take, check whether they act on the serotonin receptor, and to what effect.
Something that also helped me immensely when I was trying to gauge whether a combination would be safe was to go to the Erowid experience vaults and search for [Pharms - (your SSRI)] Combined with: [Drug you want to take] - take a look at the dosages and read about what happened. Use that to make an informed decision on whether you do or don't.
To echo Mycophile, this is not an exhaustive list, I can only answer from personal experience, and this is by no means encouragement to do any of the combinations with SSRIs I have tried. What might have been ok for me may not be ok for you. Always exercise caution, and if you're not sure, don't do it! Stay safe
