I haven't had bronchitis in years and don't remember the dosage given to me. I have gained a great deal of weight last year and found that the 7.5mg dose in cap form was inadequate to stop the cough when I first took it and only lasted 4 hours (I woke coughing at 4am). I am hypoglycemic and the sugary syrups make me ill.
The last time I was prescribed codeine they were oblong caps. I do have adrenal fatigue and this is not helping.