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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

Several acute oral toxicity values are available for Amitriptyline hydrochloride, the most relevant values are summarized below.

rat, LD50, oral = 240 mg/kg

mouse, LD50, oral = 140 mg/kg

Overall, available data are sufficient to classify the substance as Acute Tox. 3 H301.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Referenceopen allclose all

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Species:
mouse
Strain:
not specified
Sex:
not specified
Route of administration:
oral: unspecified
Vehicle:
not specified
Sex:
not specified
Dose descriptor:
LD50
Effect level:
140 mg/kg bw
Based on:
not specified
Interpretation of results:
Category 3 based on GHS criteria
Conclusions:
For amitriptyline hydrochloride the mouse, LD50 by oral oral route was 140 mg/kg bw.
Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Species:
rat
Strain:
not specified
Sex:
not specified
Route of administration:
oral: unspecified
Vehicle:
not specified
Sex:
not specified
Dose descriptor:
LD50
Effect level:
240 mg/kg bw
Based on:
not specified
Interpretation of results:
Category 3 based on GHS criteria
Conclusions:
For amitriptyline hydrochloride the rat, LD50 by oral route was 240 mg/kg bw.
Endpoint conclusion
Endpoint conclusion:
adverse effect observed

Acute toxicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Acute toxicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Justification for classification or non-classification