Beyond banning large cups for Cokes... ban large bottles for Tylenol.

That's the suggestion in "A Simple Way to Reduce Suicides."

We need to make it harder to buy pills in bottles of 50 or 100 that can be easily dumped out and swallowed. We should not be selling big bottles of Tylenol and other drugs that are typically implicated in overdoses, like prescription painkillers and Valium-type drugs, called benzodiazepines. Pills should be packaged in blister packs of 16 or 25. Anyone who wanted 50 would have to buy numerous blister packages and sit down and push out the pills one by one. Turns out you really, really have to want to commit suicide to push out 50 pills. And most people are not that committed.... 

Why haven’t we seen more blister packages? One reason is money. Manufacturers would have to redesign packaging, and the blister packaging would cost more compared with loose pills in a bottle. The other main reason is that some consumers — notably people with arthritis — might find it challenging to open the packages.

But if we could save one life... the life of the insufficiently committed... suicidal but too lazy to poke enough pills out of the blister packs...

You know the type. For them, life is not worth the trouble. And then suddenly killing yourself is also a lot of trouble. What's more trouble? Living or these damned blister packs?