Sleeptalking! Sleepwalking! Side Effects of Montelukast
Table 2
WHO-UMC causality categories
Causality term
Assessment criteria
Yes/no
Certain
Event or laboratory test abnormality, with plausible time relationship to drug intake.
Yes
Cannot be explained by disease or other drugs.
Yes
Response to withdrawal plausible (pharmacologically, pathologically).
Yes
Event definitive pharmacologically or phenomenologically (i.e., an objective and specific medical disorder or a recognized pharmacological phenomenon).
