Some other things to consider with the compound are:
1. Are you shaking it well each time so that ALL the white sediment on the bottom gets mixed into the solution? The white stuff is the sodium bicarb buffer and it can take vigorous shaking to mix it through.
2. How is it being prepared? Is it made at a concentration between 2-4mg/ml, and are you giving at least 3.5ml per dose? If each dose is less than 7ml, then is it made with at least 16.8 percent sodium bicarbonate?
3. If it’s unflavoured is the pharmacy adding any additional flavouring agents such as simple syrup, sweet syrup, stevia powder/bitter stop? All of these can degrade the meds.
The compound never worked for Hailey until we started following those rules. But that was just our experience. Good luck. I hope you get things sorted out soon.