When CVS agreed to acquire insurer Aetna last fall for $66 billion, some wondered about how the deal would impact CVS customers who have different insurance. Would they have to pay higher prices, be denied service, etc? Worst-case scenario sorts of stuff, but clearly matters that government regulators would examine.

Now there is a lawsuit in Florida that, were its allegations borne out, could give those regulators something to dig into.

The plaintiff is Sentry Data Systems, owned by private equity firm ABRY Partners, which is largely focused on facilitating a federal program (340B) that requires drugmakers participating in Medicaid to provide discounts on certain outpatient medicines. In short, it's a middle-man between the manufacturers and distribution locations like CVS pharmacies.

The claims

Sentry alleges that after CVS bought rival 340B company Wellpartner last summer, it told many Sentry customers that Wellpartner would become "the exclusive 340B program administrator for all CVS Health retail and specialty pharmacies."

• Not only does Sentry believe some of its trade secrets were misappropriated by CVS, but also that the exclusivity move is anti-competitive — given how large CVS is within the 340B space. In some markets, for example CVS is the only option for such patients.
• Key here is how CVS is allegedly tying two separate activities together (i.e, 340B administration and retail drug sales).
• This is a relatively small case (albeit huge for Sentry), but discovery could provide some clues into what would come post CVS/Aetna.

A CVS spokesman tells Axios the suit is "without merit," adding: