I have two questions currently:
1) Does anyone have short lived motivational effects? (1-3 hours)
2) Will taking Guanfacine to counteract the working memory issues also weaken positive benefits?
I would get short lived effects from Luteolin. Artichoke lasted longer. Quercetin lasted too long and caused sleep problems.
As for 2, we already got into this way back in the debate with Unbeatable King a few pages ago. Guanfacine may seem attractive because it lowers cAMP inthe pre-frontal cortex improving working memory. However cAMP is not necessarily affected in the PFC (Pre-Frontal Cortext) by our PDE4 inhibitor. cAMP signaling is highly compartmentalized. cAMP does not flow around the body like water. It is in particular areas in the body being regulated by particular PDE enzyme subtypes that are each only found in particular parts of the anatomy. That's why there are all the PDE variants PDE1-10 and then further subvariants such as PDE4A1 PDE4A5, etc. which regulate cAMP in the particular parts of the body where they are localized.
Rolipram had the problem of inhibiting the PDE4 variants that improved memory but also the ones that caused vomiting. Some PDE4 variants, when inhibited, weaken memory, some improve it. At least in my and others experience, Luteolin doesn't seem to have the vomiting or short-term memory problems probably because the mix of PDE variants it affects seems to be limited to ones that are tolerable and beneficial. In my and others experience, Quercetin seems to cause undesirable effects when inhibited (bad sleep, working memory degration) with the stack at least at dosages that most pills come in probably because it is inhibiting PDE variants that lead to these issues, for instance in the PFC. Some people have had success at 100mg of Quercetin though.