Mississippi legislators wrangled Wednesday over regulations for medical marijuana, with the House killing one bill and the Senate reviving the issue hours later by wedging it into a separate bill. Voters in November approved Initiative 65, which authorizes a medical marijuana program. It got on the ballot through citizens’ petitions. The constitutional amendment requires the state Health Department to create a program so that marijuana can be available later this year to people with “debilitating” medical conditions. The long list includes cancer, epilepsy and sickle cell anemia.