80’s horror movie involving a vial of glowing blue liquid

Around ’83 or so I caught 20 mins of an HBO horror movie (I believe it was anyway) that involved an evil woman pouring a glowing blue liquid into the mouth of another younger woman laying on a table. Thats about all I remember…  Any ideas?

1 thought on “80’s horror movie involving a vial of glowing blue liquid

  1. There is a scene kind of like this in The Beastmaster (1982), but they pour the glowing liquid over her throat, not in her mouth. The trailer shows it:

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