You've been instructed to take them 3 times a day, that would be one pill every 8 hours, why would you take them every 4 hours?
In America, the standard for prescriptions would be giving the exact interval, say take one pill every 8 hours, or to provide a more general instruction, say 3 times a day. If it says every 8 hours, it should be taken every 8 hours. If it says 3 times a day, it would not be uncommon to take them 3 times during hours you are awake. If you sleep 8 hours, that leaves 16 to be split by 3 times, or every 5 hours (technically every 5.33333 hours). It's best that you take them at the same time each day.
Ask your pharmacist for details. I went to pharmacy technician school but never worked in the field. I make much more money as an industrial electrician. A pharmacy tech is not a pharmacist, the pharmacist makes good money. But I learned about pharmacists. They now require a 6 year degree and are known as a Pharm-D, or a doctorate in pharmacy. Before they had a 5 year degree and were Registered Pharmacists. Find yourself a good one, most know much more about medications than doctors.
I would think that is too many in a 24 hour day if they are prescribed 3 times daily. I take a med 3 times daily and I take one in the morning, one in the early evening and the last one at bedtime.
Thanks you for replying. Does this mean I have not "Double Dosed" and can actually get some sleep? haha! Been getting really worried as I have beentaking them every 4 hours!
It would seem that you are taking lower quantities of this. I would continue for a while and let you body acclimate itself to it to see if the tiredness goes away.
According to what I've read, the usual dosage of Propanolol (Inderal) for treatment of abnormal heart rhythms is 10-30 mg 3-4 times.
There is a lot of available reading on this drug. Interesting "stuff".
I was given "Pronanolol"10MG.
What is the particular beta blocker that you were prescribed?