Matatabi has a similar effect on cats as catnip. If your cat hasn't had much of a reaction to catnip, it's certainly worth giving matatabi a try instead!
Matatabi Sticks are cut from all natural sections of vine of the silvervine plant (scientific name Actinidia polygama) and contain natural oils that cats are attracted to just like catnip. Matatabi has two ingredients that get cats excited; actinidine and dihydroactinidiolide. The leaves are also used to make tea for humans.
A study published in the BioMed Central Veterinary Research (source) comparing the effects of Matatabi saw almost 80% of the cats responded to Matatabi.