Timeline detailing announcements of cholinesterase inhibitor inclusion onto provincial formularies and dates of provincial electionsa.

Abbreviations: L, Liberal; NDP, New Democratic Party; PC, Progressive Conservative; PQ, Parti Quebecois.aProvinces are listed in order of when cholinesterase inhibitors were added to provincial drug formulary. In four provinces (Ontario, Manitoba, Nova Scotia, and Newfoundland and Labrador), announcements of drug formulary coverage were made within the 60-day period preceding a provincial election.bFor the time between announcement and closest election, the number of days is given as either the numbers of days preceding an election (a negative number, e.g. −2 days) or the number of days following an election (a positive number, e.g. +73 days).cMinority government.dDecision to add cholinesterase inhibitors to Newfoundland and Labrador drug formulary announced by Liberal government on 18 September 2003 was delayed, after Liberal government defeated by Progressive Conservatives in October 2003 election.