CVS Health Corp.’s subsidiary Omnicare Inc. has plunged into Chapter 11 bankruptcy, a dramatic collapse triggered by a devastating $949 million civil judgment. The pharmacy-services provider, accused of improperly dispensing prescription drugs to individuals in long-term care, filed for court protection in Texas, revealing a staggering financial imbalance with liabilities potentially 100 times greater than its assets. While Omnicare challenges the judgment that now stands as its largest unsecured debt, the filing marks a severe crisis for a key unit of the healthcare giant.