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[Dietary supplements on the domestic market adulterated with sildenafil and tadalafil].

Mandatory requirements regulating the manufacture and sale of dietary supplements are much less stringent than those related to pharmaceuticals. Hence, the sheer number and diversity of marketed products in this category has shown an unprecedented increase Europe-wide. Not surprising, that cases for incorrect marketing/promotion, incorrect recommendations for product use, as well as reported incidents of questionable product quality and/or deliberate adulterations have also become frequent in recent years. Typical adulterations consist of admixtures of synthetic pharmaceuticals to the matrix fraudulently declared to consist exclusively of extracts of various (medicinal) plants. In the present paper, the results of qualitative investigations of ten plant-based preparations, marketed in Hungary, and recommended as (or alleged to be) natural aphrodisiacs, are reported. Sildenafil and/or tadalafil or related analogs were detected in six of the ten products. These results highlight, once more, the unacceptable risks for the consumers of such adulterated dietary supplements.