Thanks to Hilde:-

California vintners in the Napa Valley area, which primarily produce Pinot Blanc, Pinot Noir and Pinot Grigio wines, have developed a new hybrid grape that acts as an anti-diuretic.
It is expected to reduce the number of trips older people have to make to the bathroom during the night.

The new wine will be marketed as

Pinot More

I heard it through the grapevine.

(To understand this one you need to know how to pronounce Pinot, basically it sounds like “pee no”. Got it?)