Vitamin b6 100mg and unisom 25mg?

I usually take a full tablet of both before bed & I feel relieved from nausea & vomiting. I went from throwing up 20-30 times a day to 4 times at the most or no vomiting at all. Yesterday I didn’t go home so I couldn’t take my medicine and I was back feeling terrible again. Soon as I went home today I took the tablets and now I’m wondering can I take it again before I go to bed tonight? Or should I wait until tomorrow?