For the vast majority of people, yes
doi:10.1007/s00394-010-0119-6
This is where careful preformulation drug characterization is needed in order to fully understand and predict the nature of niclosamides solid forms, its resulting solubility in aqueous media, and hence its bioavailability, in (any) dosage form
The range covers dogs, cats, horses, and other animals across a variety of formulas, so finding something suitable for your pet is rarely a problem
Normal saline (0.9% sodium chloride) is sometimes suggested online, but it is not recommended for peptide reconstitution
In contrast, B12 injections go directly into circulation, making them far more effective when absorption issues are part of the equation