Visitors of all ages arriving in Canada by air require a passport or passport equivalent, such as a NEXUS card. If you need a passport right away, get a passport within 24 hrs with Rushmypassport.com.
OTC means Over the Counter, which is a test that you can buy at the store and do not need a prescription for. Many medication are called OTC which means you can just go by them without a doctor's prescription. Or it could also be an OTC stock trade.
Medical Definition of OTC (over-the-counter) OTC (over-the-counter): Available without a prescription. OTC drugs are available without a prescription, simply over the counter.. OTC drugs are in contrast to prescription drugs that require a doctor's order. Last Editorial Review: 6/9/2016.