[1] Several forms of pyrvinium have been prepared with variable counter anions, such as halides, tosylate, triflate and pamoate.

[2][3] Pyrvinium was identified as a potent Wnt inhibitor, acting through activation of Casein kinase CK1α.

[4][5] Pyrvinium salts can also inhibit the growth of cancer cells.

[6] More specifically, the pamoate salt has been shown to have preferential toxicity for various cancer cell lines during glucose starvation.

[6] More recently, an alternative convergent, synthetic strategy to pyrvinium triflate salts through Friedländer synthesis was reported.