I'm so sorry you're still suffering. Unless you've been through it, I don't think anyone can fully understand how terrible and distressing it is. Do you know if you have lost weight compared to your pre pregnancy weight. That along with dehydration seemed to get medics taking me more seriously.
Ondansetron is a second line med and yes, there is often a reluctance to give it which is misplaced . I think it's still the memory of what thalidomide did which causes some doctors to not want to prescribe anything. Doxylamine and B6 were used in the USA from 2013 and also in Canada for years before that. It's wasn't available here until late 2018.
The below information is from the website I linked:
"There is some reluctance to prescribe Ondansetron in the first trimester, however an ondansetron research paper found that there is no link to heart defects and an extremely minimal ‘associated risk’ (not direct cause) to cleft lip/palate when taken in the first 10 weeks of pregnancy (the face is fully formed past this point.) In a regular pregnancy, with no medication use, the base line risk of cleft lip/palate is 11 in every 10,000 babies.
With ondansetron use there was found to be an extra 3 babies in every 10,000 so it is a very tiny risk – however to get to the point of ondansetron use then a person would have likely been at the point of dehydration and possibly malnutrition, so these could also be a factor in causing the extra 3 babies. Please read our blog here if you wish to find out more.
Ondansetron is prescription only.
The RCOG Greentop Guidelines 2024 state Ondansetron is safe and effective, Its use as a second-line antiemetic should not be discouraged if first line antiemetics are ineffective. Women can be reassured regarding a very small increase in the absolute risk of orofacial clefting with ondansetron use in the first trimester, which should be balanced with the risks of poorly managed HG. is safe and effective and can be used alone or in combination with other antiemetics".
The site has a link to the guidelines and research which you could share with the obstetrician when you see her/him. If you feel up to it write down any questions you have, discuss weight loss as a result of HG
Oh and you're officially allowed to tell people who ask if you've tried ginger to shove it where the sun don't shine! Because someone always has to say it.
Hope you get some more sleep soon