When to drop to 4 pumps per day?

I'm just a bit confused about the dosage schedule. Could you please clarify when it's advisable to reduce the pumps to four times a day? I've been following the instructions carefully, but I'm not sure if I'm ready for this step yet. Could you possibly explain the signs or indicators that would suggest it's time to make this adjustment? Also, I'm a bit worried about any potential side effects. Could you reassure me that this is a safe and effective transition? I'd really appreciate your expertise and guidance on this matter.