I haven’t used the product or heard of it until now, but it looks to be an ivermectin based product, so it should be safe if used correctly. The main thing is to never use any product containing fipronil on rabbits, as it is very toxic to them.
The most common treatment for mites in the US is Revolution, active ingredient is selamectin, which is in the same class of chemicals.
The safest bet would be to give your vet a call and see what they recommend. I know certain anti-parasite treatments have lost some effectiveness recently as parasites evolve resistance.
As an aside, the types of mites that rabbits get cannot infect humans. I would guess that you are feeling itchy more as an allergic response than due to any mites from hay (or possibly due to sympathy for your buns).
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.