Underlying data for P, B, T and risk are from Fass.se.
Dimenhydrinate is a 1:1 salt of diphenhydramine and 8-chlorotheophylline. See also diphenhydramine.
Fass environmental information for Calma (dimenhydrinate ) (downloaded 2018-10-25).
Persistence: No data.
Bioaccumulation: Log Kow = -0.39.
Toxicity: No data.
Risk of environmental impact of dimenhydrinate can not be excluded as ecotoxicological data are missing.
"According to the European Medicines Agency guideline on environmental risk assessment of medicinal products (EMA/CHMP/SWP/4447/00), use of dimenhydrinate is unlikely to represent a risk for the environment, because the predicted environmental concentration (PEC) is below the action limit 0,01 μg/L."
Author: Health and Medical Care Administration, Region Stockholm