Search Menu

Glossary

Selected words and phrases

Q12H (or q12H) – an abbreviated term for timing medication doses.

q8H means every 8 hours.This is not the same as three times a day (tid or TD).

q12H means every 12 hours. This is not the same as twice-daily (bid or BD).

q24H means every 24 hours. This is not the same as once-daily (qd or QD).

severity – a measure of how bad something is.

clinical failure – when you develop new symptoms and illnesses even though you are on treatment. SeeĀ virological failure.

open label – this means that a patient in a trial knows which treatment they are taking.

BMI (body mass index) – a calculation usingĀ  height and weight that is used to decide whether someone is over or under weight.

Online BMI calculator.