not sure what you mean by PMS, but assuming that it is a brand. Getting powder in your lungs is not good, especially with methylphenidate
as it often contains silicon dioxide. Any pill using silicon is not real healthy to be insufflating. Not sure what specific ingredient would cause this, and even then it might not be silicon. Just be a little more cautious of the manner in which you allow your marmoset to ingest it if silicon is listed as an inactive ingredient.
So, we are comparing brand-name ritalin
(methylphenidate) to a generic brand correct? What does PMS stand for?
For the sake of harm reduction
always advises his little marmosets not to insufflate pills which contain harmful binders (silicon in particular as it was the cause of a long and very, very painful death of an elder marmoset). The elder marmoset was not insufflating pills, but rather exposed to a work environment for years and years on end where tiny amounts of silica in the air eventually destroyed the lungs.
Perhaps if a marmoset were to draw out thin narrow lines and not insufflate with great force, the particles would be more likely to be filtered out before reaching the lungs. Haha, exhaling a cloud of smoke isn't good, especially when one isn't even smoking. Anyways, check the ingredients in the generic and compare them with the brand name you had before. If one has silicon and the other doesn't, perhaps a marmost could suggest that something in the new preparation is interfering with the effectiveness of the medication in some manner...