A hangover is an illness, a German court has ruled.
The verdict was given in a case relating to the marketing of an "anti-hangover" drink.
The company that produce the drinks had been accused of making false health claims about its ability to cure a hangover.
The state court in Frankfurt ruled that the food supplement distributor violated a ban on attributing to food products the ability to prevent, treat or heal illnesses.
It rejected an appeal against a lower court's similar verdict.
Judges found that an illness should be defined broadly in the interest of protecting people's health, and said the term encompasses "any, even a slight or temporary, disruption of the body's normal condition or normal activity", according to a court statement.
That, they said, includes headaches and other symptoms that result from consuming alcohol, "a harmful substance" - and which the company claimed its products could cure.
The ruling came just days after the annual Oktoberfest beer festival kicked off in Munich.
