If you supplement, you can avoid side effects by taking no more than 100 mg of vitamin B6 each day. Vitamin B6, also known as pyridoxine, plays an important role in many of your body's functions.

Vitamin B6 has been shown to help with nausea while the doxylamine may reduce vomiting. A typical dose of the combination tablet is 10 mg to 25 mg, three times a day. 5. Vitamin B6 may treat ...

The typical regimen includes: Vitamin B6: 10 mg to 25 mg, taken three or four times daily (40 mg to 100 mg total daily) Unisom: 10 mg to 25 mg at bedtime (or as directed by your provider ...