On the  long scale , one billion is 1 million million, or 1 and 12 zeroes (1,000,000,000,000). The long scale is still used in some European countries (France, for example). The UK switched to the short scale in 1970/71. On the  short scale , one billion is 1,000 million, or 1 and 9 zeroes (1,000,000,000).
The amount of vitamin K in your diet can affect the amount (dose) of. warfarin you need to take. Your medicine dose must be balanced with your. diet to allow the drug to work correctly. A few things to remember when taking warfarin: You want a medium or moderate amount of vitamin K in the foods you. eat.
While higher than average, 10 mg per day is not an extraordinarily high dose of warfarin, nor is it an uncomfortably high dose for individuals whose diets are high in vitamin K, such as vegetarians. The need for 10 mg warfarin daily, however, presents an opportunity to reiterate to the patient the importance of maintaining a consistent diet with respect to vitamin K-containing foods.