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Antiviral activity of the photoactive plant pigment hypericin.

Photochemistry and photobiology (1991-07-01)
I Lopez-Bazzocchi, J B Hudson, G H Towers
ABSTRACT

The polycyclic compound hypericin, a known photodynamic agent, was investigated for antiviral activity in the presence and absence of light. The three viruses tested: murine cytomegalovirus; Sindbis virus; and human immunodeficiency virus type 1, were all susceptible to hypericin; but these antiviral activities were considerably enhanced, in a dose-dependent manner, by exposure to light.

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Sigma-Aldrich
Hypericin from Hypericum perforatum, ~95% (HPLC)