Is this vitamin vegan!? Please help?

ok the vitamin is called sundown naturals high potency b12 time release 1500 mcg. on the front it says vegetarian formula, but i dont know if this means that is vegan as well. the b12 is coming from cyanocobalamin, which i believe is vegan. other ingredients are dicalcium phosphate, vegetable cellulose, hypromellose, vegetable magnesium stearate, and silica. this pill contains no artificial color of flavor, no preservatives, no sugar, no milk, no lactose, no soy, no gluten, no wheat, no yeast, no fish, and is sodium free... so can anybody read through these ingredients and tell me if this is a vegan approved vitamin???