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In page Peperomia:

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Some species, including Peperomia inaequalifolia[citation needed], Peperomia congona[4] and Peperomia pellucida[5], are also used in herbal medicine for various health conditions. While such folk medicine usage is common in Peru and elsewhere, the possible medicinal qualities of peperomias remain poorly investigated, although there has been a growing interest for the subject recently.[6]