There aren't any "cardiac arrestants" here per se. In fact, initially your heart rate will increase, up to 200 BPM, as your body struggles to compensate for a critically low blood pressure. The central nervous system toxicity, secondary to Risperidine, will cause respiratory depression; as your level of consciousness decreases, so will your respiration rate until you go into respiratory arrest, followed by cardiac arrest.
Valproate (Depakote) causes mild toxicity in the majority of overdoses. Massive overdoses of greater than 400 mg kg−1 can cause severe toxicity, but these are uncommon. Overdose symptoms may include tachycardia, drowsiness, and vomiting.
Based on individual case reports of massive overdoses, valproate is often regarded as having significant toxicity. This study aimed to describe the epidemiology of valproate poisoning and the spectrum of its clinical effects.Consecutive valproate poisonings ...
www.ncbi.nlm.nih.gov
In your case, a dose of 100 grams of Depakote (or Valproic acid) would be approximately 1,111 mg/kg, high enough to result in severe toxicity, according to the NIH.
I don't have any info on lethal dosage for Risperidine. Dosage is as low as 0.125 mg and up to a max 16 16 mg/day. Side effects for overdose include lethargy, spasm/dystonia, hypotension, tachycardia, and dysrhythmia.
Risperdal (risperidone) is used to treat bipolar disorder, bipolar mania and schizophrenia. Learn side effects, dosage, drug interactions, warnings, patient labeling, reviews, and more.
www.rxlist.com
As for Quatiapine, 775mg is not a huge dose, considering it comes in tablets that range from 25 to 400 mg. In one case, a female overdosed on 36 gms (wow) and was resuscitated.
Clonazepam 60 mg is also not a huge amount, depending on your regular dose. Maintenance dosage for seizure disorders (I surmise that's why you take it) is a max of 20 mg/day, so you may have some tolerance, even if your dose is much lower. Clonazepam is a benzo, so OD symptoms may include confusion, drowsiness, weakness, poor coordination, slow reflexes, fainting, and coma. I'd expect you to be much more prone to these effects if you only take 1 mg or less.
Clonazepam, a benzodiazepine medication, may be prescribed by itself or with other medications to control certain types of seizures. A doctor may also prescribe clonazepam for relief of panic attacks. Clonazepam decreases abnormal electrical activity in the brain. Clonazepam is listed as a...
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Whew, that's a lot of info. The upshot of all this is
yes, I think even the Depakote alone would, theoretically, be enough for a fatal OD. Now, alcohol potentiates Depakote dramatically, so I think your original idea is a good one. I would drink a few shots of hard alcohol, not beer, if at all possible.
Take a blanket with you if you're going into the woods; you're gonna feel extremely tired & dizzy as soon as the effects hit you, and you'll want to lie down. Make sure the area is secluded and you won't be found.
