I'm really hoping someone with pharmaceutical knowledge will answer your question Clutchingatstraws as I have questions myself regarding some of these combinations. I have some kanna I have been wanting to try, but am uncertain as to starting dose and whether or not it mixes with 5-htp, though discussing it's against rules to discuss dose some I'm more interested in whether it can be used with a low dose of 5-htp.
I think there is a better chance of that happening if your post remains in the "Other Drugs" forum as opposed to combining it with the post in "The Darkside". Would you mind if we left them seperate for a while to see if somebody answers? We can combine them later though.
In regards to kratom and 5-htp, I have never noticed any bad effects from the combination, however, I never took them at the exact same time. I have used kratom during the day, and then have used 100mg-200mg of 5-htp before bed.
The one combination I am certain you do NOT want to do is St. John's Wort with 5-htp. Personally, I would save the St. John's Wort for last as it's going to have the most interactions with other substances out of all of them as it's an MAOI (monoamine oxidase inhibitor).
If kanna is in fact an SSRI (selective serotonin reuptake inhibitor), I would be very careful about taking 5-htp with it, as it may cause too much serotonin to be present.
Kratom and 5-htp (<200mg) yes
Kratom and kanna ?
Kanna and kratom ?
Kratom and kava yes
kava and 5-htp yes
I'm not certain if you would want to mix kanna and kratom as both have stimulating properties, unless you did kanna in the morning and kratom later in the afternoon or evening.
Regarding strains, I don't think there is ultimately much difference between them, but white seems to be a little more stimulating than red. I would take white in the morning and red before bed when I was withdrawal from alcohol. I would also take 5-htp, kava, and melatonin right before bed and would get really solid sleep. If you try that combination, take it 30 minutes before wanting to fall asleep. It's surprisingly strong, and you will find you will stumble and slur your words if you have to still be up.
Regarding kava, make sure you get a quality brand. I don't know if they sell it in your area, but Gaia makes an extract that is very effective, and doesn't have ill effects on the skin. I have used some kava that causes a very itchy rash, that lasted for a few days. I don't know about you, but itching makes me very anxious and so it was counterproductive to taking kava for relaxation lol. Also I am girl, so skin problems on my face and neck do nothing to decrease anxiety.
DISCLAIMER: I have personally used kratom, kava, and 5-htp on the same day, for consecutive days, will no noticeable ill effects. I am giving personal experience, this is NOT based on science, so it is very possible it could be a harmful combination.