(April 30, 2024, 9:05 AM EDT) -- TRENTON, N.J. — In a lawsuit brought by a pharmaceutical supplier alleging that a manufacturer breached a contract for the purchase of large quantities of hydroxychloroquine and chloroquine phosphate in refusing it refunds for unsold product, the manufacturer in its answer and counterclaims alleged that the supplier relinquished any rights to reimbursement and in fact owed the manufacturer more than $1.7 million for unpaid invoices....