What drug is kava most similar to?

Could you please elaborate on the similarities between KAVA and other drugs? Are there any psychoactive compounds present in kava that are comparable to those found in other substances? Additionally, how do the effects of consuming kava compare to those of other drugs, both in terms of their nature and intensity? It would be interesting to know if kava can be considered a substitute or alternative to any particular drug, and if so, which one.