Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Sete sangrias (Polygonum punctatum, sometimes also referring to Cuphea carthagenensis or Chiococca alba in folk medicine) has a long history of traditional use in Brazil and other parts of South America for treating respiratory ailments, including coughs, especially those described as “spastic” or persistent. In Brazilian folk medicine, the plant is commonly prepared as a tea or infusion and is believed to possess expectorant and soothing properties that help to calm coughs and ease breathing. However, the use of sete sangrias for cough is rooted in ethnobotanical tradition rather than in robust scientific validation.

There are very limited pharmacological studies relating directly to cough suppression or antispasmodic effects. Some preliminary research on the plant’s phytochemical composition indicates the presence of flavonoids, tannins, and saponins, compounds with potential anti-inflammatory or mild sedative properties, which could theoretically contribute to its traditional use for cough. Despite this, there are no well-controlled clinical trials or substantial laboratory studies confirming its efficacy or safety specifically for cough (spastic or otherwise). As such, while its use is common and well-documented in traditional medicine, the scientific evidence supporting this use is weak, and healthcare providers generally rely on anecdotal reports rather than established research.

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