The legal fight around medication abortion — the two-pill regimen that allows women to terminate their pregnancies — escalated Wednesday with separate lawsuits filed in two states challenging their restrictions on the method. One lawsuit was filed by GenBioPro, a major manufacturer of mifepristone, which is the first drug used in the medication abortion process, in West Virginia challenging the state’s laws limiting access to the drug, including the outright ban on abortion lawmakers passed last year.