Lawmakers in more than two-thirds of the states are considering ways to reduce prescription drug costs, including importing them from Canada, as they strive to balance budgets without knowing for sure what their government’s share of the tab will be. A total of 87 bills in 34 states of all political stripes seek to save money on prescription drugs, according to the nonpartisan National Academy for State Health Policy. Six of those states are considering bills that would allow drugs to be imported from Canada, where they cost an average 30 percent less than in the United States.