How many grams of venom does a viper put out when it bits?

Vipers typically inject between 50 to 150 milligrams of venom per bite, depending on the species and size of the snake. However, this amount can vary significantly, with some bites delivering more or less venom. It's important to note that not all viper bites result in envenomation; some may be dry bites, where no venom is injected.