SWIM has found that most other classic psychedelics don’t really go well with LSD.
LSD + HBWR is a waste of HBWR. It doesn’t do much for the trip.
LSD + Marijuana is very trippy, lots of insane visuals, but it can also make you feel retarded. This is SWIM's least favorite combo. But it can be nice if the LSD dose is very low.
LSD + mushrooms is a waste of mushrooms. At least for SWIM it is. The combination is not really any better than LSD is on its own.
The better combinations are these that follow:
LSD + alcohol. As long as the doses of each are low, this is a very interesting experience. It’s hard to describe. Try it though. SWIM doesn’t like alcohol, but likes this combination.
LSD + Passionflower is a fantastic combination. One of the best there is in SWIM’s opinion. The passionflower adds a spiritual component to the trip and smoothes out the rough edges.
LSD + Ephedra (or Mormon Tea) is a very euphoric experience. Keep the doses low for this combo.
LSD + Datura stramonium seeds (about 5) is a very nice combination. There are more visuals and a little more euphoria.
LSD + nux vomica (about 40 mg, and no more, it’s toxic) is a very nice combination. This increases the visuals, the euphoria, sense of awareness, and pretty much every other effect of LSD. Nux vomica and ergot (the source of LSD) are a classic combination that has been used for hundreds of years for medicinal purposes. Like ergot, nux vomica is also very toxic. Never take more than 40 mg (this is the dose that’s available over the counter in India).
LSD + yohimbe is a nice combination. It increases the visuals. Keep the yohimbe dose low. Some people are very sensitive to yohimbe’s side effects.
LSD + coffee is a good combination, especially if the LSD dose is low. It’s more stimulating and euphoric. It’s not a good idea if the LSD dose is high.
LSD + kava is a good combination. The experience is relaxed, but the kava doesn’t take away from LSD’s other effects. The bodily sensations are very pleasant.