Antifungals do not work like molybdenum to eliminate die-off symptoms. Antifungals in large doses typically cause die-off and typically makes it worse.
Another alternative to molybdenum is to sweat out the toxins via the skin, the bodies largest organ. This can completely reduce or eliminate die-off symptoms. If you were to do a hot tub, sauna, steam room, jacuzzi, or even hot bath up to 5 days a week, this could really help.
Other types of vitamins you can take that are similar to molybdenum is anti-oxidents in general (or so I hear). I’d do some research to find other ones that you can take.