@YosemiteGrrl I was taking a look at your plan and it seems quite complicated. OK here metoclopramide is in fashion and we all want to use it as an anti-emetic (especially bcs tables with serious effects tend to contain emetics)
400 mg propranolol - not a good idea. I understand you want to mess up your heart, but 10*40mg tablets has minor effects, just enough to mess the plan. OK these tablets come from some old relative.
Then we have 280 mg Ketamine. This will annoy the propranolol bcs ketamine increases heart rate and blood pressure and causes this;
==Ketamine intoxication=
Impaired consciousness is the most common presentation; ketamine intoxicati7on may cause a range of central neurologic symptoms, most often depressed mental status, but also possibly mild agitation and hallucinations; mild tachycardia and hypertension often occur
Massive overdose can cause respiratory depression or apnea
Laryngospasm and heavy salivation may occur infrequently during intravenous use, even with standard doses; laryngospasm is rare and occurs most often in infants
Vertical or rotatory nystagmus may occur
======================
So at this point you might be dizzy, agitated, hallucinating and what is essentually having a panic attack
Depensing in how the lozenges work, you'll breathe less and can pass out again.
OK so then you tage Tagamet (cimetidine) as an antacid. However Tagamet takes 1 hour to work and works on the H2 receptor, and so:
Adverse effects:
1% to 10%: Central nervous system: Headache (2% to 4%), dizziness (1%), drowsiness (1%)
Endocrine & metabolic: Gynecomastia (≤4%)
Gastrointestinal: Diarrhea (1%)
but ok the percentages are small. Then we have liquid morphine. This is interesting, because it is rare. If you don't mind telling me, here or in PM, how come you have been prescribed liquid morphine. :-) 20 mg is actually the highest usually prescribed dose to patients in pain. But at this point, idk, the other medicine already caused some confusion. But 20 mg morphine can bring on that warm fuzzy morphine glow, make you so happy that the process stops here and you think wtf am I doing?
Finally SN. I just wonder why you all include antacids, SN is an alkali. I suppose it will react less. Hasn't the dosage been altered from the original plan? The second propranolol will also act cardiotoxic.
The diazepam and lorazepam at the end - massive dosage hoping to go quietly, equivalent to 630 mg diazepam. Bear in mind, though, that they need be immediate release. Crushing doesn't make them immediate release, because they might be bound with a molecule that causes slow release.
There is a chance that this plan will be hard to implement and that you will be a little impaired to carry it through. You also risk the effects of ketamine, which might even improve your mood so much, which will make you want to live.
I don't understand why the Tagamet but ok. Consider, however that everything you are taking is fighting against the metoclopramide.
If you actually manage not to vomit and the SN starts to act, your brain will receive less oxygen and might go into emergency mode, which is not pleasant (heart beating fast - the second propranolol takes fime to act -, deep frequent breats drowning style, then everything feeling ice-cold as blood pools to the heart and brain).
The benzos will act but once you are unconscious imho. Risks here: paradoxical reaction: you become superaware and superreactive to everything and that's when people call emergency services; extremely small but possible chance that the benzos trigger the drowning reflex: in the same way that a boy survived about one hour under ice-cold water, the benzos might reduce brain metabolism so much that it will consume much less oxygen and survive. Call it a "medically induced coma" if you want. Here the risk is organ damage.
Sorry if sound so negative but I tend to be scientific. I am quite curious about your availability of liquid morphine, because that's rare. You can swallow because you are eating tablets. They could be tritating it at the drop (sub-ml) level. Or you organised it :-D
If you don't mind, do write me a PM, I am curious about your situation. I checked around and I didn't find a post in which you talk about your situation.
Best hopes and wishes as always! :-)