Rooster booster safe for ducks?

[BelovedBirds]

Is it safe for ducks to be supplemented with rooster booster (complete multivitamin and probiotics for roosters and hens)? It's clearly aimed at chickens but it says suitable for other domestic fowl and pigeons.
Secondly, my duck Sprightly is on antibiotics currently, is it safe to give this probiotic to her while on the antibiotics? Or should I give it to her afterwards to re-establish good gut health?

The ingredients are: cooked maize meal, wheat feed, corn gluten meal, brewers yeast, minerals, yeasts and the first vitamin listed is vitamin A which is mainly what I'm wanting to supplement.
Please advise?

 

[The Sniper]

It sounds harmless to me, Id just start by giving it to a bird you dont love as much as the rest to be sure

 

[BelovedBirds]

It sounds harmless to me, Id just start by giving it to a bird you dont love as much as the rest to be sure

That puts me in a pickle, I love them immensely and equally!

 

[The Sniper]

That puts me in a pickle, I love them immensely and equally!

https://www.roosterboosterproducts.com/faq
says here its safe for ducks, just follow instructions

 

[BelovedBirds]

https://www.roosterboosterproducts.com/faq
says here its safe for ducks, just follow instructions

Thank you!

 

[FenrisMau]

I've given it to mine, but not much, it contains artificial coloring. I'll put a tiny splash of that in their water, and apple cider vinegar as well.