Method

[mytrauma]

Oleander seeds.. how toxic are they?

 

[MatrixPrisoner]

10% it what it looks like. But I'm sure if you took an ungodly amount, you could up the probability to 100%

Epidemic of self-poisoning with seeds of the yellow oleander tree (Thevetia peruviana) in northern Sri Lanka - PubMed

Deliberate self-harm is an important problem in the developing world. Ingestion of yellow oleander seeds (Thevetia peruviana) has recently become a popular method of self-harm in northern Sri Lanka -- there are now thousands of cases each year. These seeds contain cardiac glycosides that cause...

pubmed.ncbi.nlm.nih.gov

 

[WaitingAllMyLife]

My research shows they are VERY toxic. But if you call for help or are found, they can typically reverse the damage. If you let them do their thing, you should be successful.

 

[Chelsea Leng]

Oleander seeds.. how toxic are they?

There are cases where death had occurred within 4–6 hrs, however most fatalities occur around 24 hrs after ingestion. Time till death varies with dose, material ingested (eg. seeds, leaves, bark. Note also that oleander tea acts faster), species (yellow oleander is actually a different genus, Thevetia), and apparently also on the victim's microbiome.