Same thing that happens if one of those Time release tablets goes off all at once (it happens- rarely mind you)- you get high (as in an Upper or Speed high), and your heart starts beating very fast. It can be dangerous to those with bad hearts.
If you’re healthy, large and with good blood pressure (and heart)- then it could be safe for you to take 3x 30mg tablets. If you are all of those and you feel like experimenting, (and your nose is REALLY plugged, and two don’t seem to help) try and take three once, and see what happens.
Note- I am not a ‘real doctor’ and taking medical advice from a “DrDeth” gets you what you deserve.
However, if you are none of those, I’d even advise avoiding the Time-release “all day” dosages/pills. Because IF the pill “goes off all at once”- you’re in trouble.
In NO CASE should you take 8x30mg tablets all at once!!! :eek: