It’s the same with assisted dying. Here is an excerpt from the paper I linked above of an experience from Oregon, which is the process and laws that Leadbetter modelled the UK Assisted Dying bill after:
Evidence from jurisdictions where assisted suicide is legal reveals that some patients who ingest the prescribed lethal drugs experience distressing complications. The Canadian Association of MAiD Assessors and Providers acknowledges that patients who ingest assisted suicide drugs can experience burning, nausea, vomiting and regurgitation, especially if the patient is experiencing difficulty swallowing large volumes of liquid. Nausea, oesophagitis, gastritis, severe dehydration or pathology of the gastrointestinal tract likely interfere with drug absorption.3 This is reflected in the data published by US states such as Oregon, where annual complication rates have been as high as 14.8% and patients are reported to have experienced difficulty swallowing or drug regurgitation, seizures and have even regained consciousness after ingesting the ‘lethal’ drugs.9
One reason for such difficulties may be that ingesting sufficiently toxic dosages of the prescribed drugs can prove a significant, and often distressing, challenge. In order to achieve an ‘assisted’ death, patients in the USA have been required to ingest 90 to 100 barbiturate pills by crushing them and mixing them into a sweet solvent. The emetogenic potency and bitterness requires antiemetics prior to ingestion to prevent vomiting. Such an experience of her aunt’s assisted suicide was described by a relative in 20164:
The full ‘cocktail’ included two anti-nausea pills, an anti-seizure pill and 100 capsules of Secobarbital. It all had to be ingested within an hour... My attention turned to the kitchen table, where my husband and sister, wearing latex gloves, frantically scraped the powder from 100 capsules with toothpicks, trying to beat the clock... The mountain of powder we poured into more sugar syrup created a half-cup of sludge so bitter it literally burned my tongue. And my aunt, who could barely swallow water, had to drink all of it in <5 min to ‘ensure success.’... When we sat back down at the kitchen table, white powder everywhere, we all had to wonder, ‘Who the hell wrote this law?’ We had been forced to assist in the most bizarre fashion, jumping through seemingly random legal hoops and meeting arbitrary deadlines while my aunt suffered, and finally emptying capsules, making an elixir so vile I cried when I knew she had to drink it. This was death with dignity?