Hormones are active in the brain and if you are low it can cause mood problems. Most sources I've seen show a 4-5 day half-life for estrodial valerate. This can leave you pretty low before 7 days are up if you are on weekly injections. There are two ways that people typically work around this:
- Increasing the dosage high enough that you don't dip too low. This unfortunately also means that your peak levels may get higher than your Dr is comfortable with.
- Splitting the dose in half and injecting two times a week instead of one. This will significantly smooth out the curve, but have the downside of requiring twice the injections.
This is an example simulation with a once weekly 5mg injection vs a twice weekly 2.5mg injection to illustrate the difference between the two:
I guess what I am saying is that there are options if the dosing schedule you start off with causes you problems that you can work through with your Dr. Also, the 5mg I used for the simulation was a semi random number and not a recommended dose.