How to Safely Reduce Lithium or Epival: A Patient's Guide

That is a very specific and important question, and the honest answer is that this decision must come from your doctor alone. Lithium and Epival (sodium valproate) are both serious prescription mood stabilisers, and changing either one without medical supervision can be dangerous. Your doctor has a plan because they are watching your blood levels, your side effects, and how your mood has been over these few months. They will look at things like: which medicine gave you better control of your episodes, which one caused more side effects (weight gain, tremor, thyroid or kidney issues for lithium, liver or blood cell issues for Epival), and your blood test results. You cannot know this on your own, and you should not try.

What you can do

• Ask your doctor directly. At your next appointment, say: "Can you explain why you are planning to stop one and which one? What signs will tell you it is the right one to reduce?" That is a fair question, and a good doctor will take the time to answer.
• Never reduce or stop either medicine on your own. Stopping lithium suddenly, for example, can trigger a severe mood episode. The tapering schedule is something only your doctor can design, usually over weeks or months.
• Keep a simple mood diary between now and then. Note your sleep, energy, and any low or high days. This can help your doctor see which medicine is working better for you.

If you are worried about side effects or feel one medicine is making you worse, tell your doctor that too. They may already have a preference based on your blood work. Trust the process, but stay involved by asking questions. You are not alone in this — Zara is here to listen if you want to talk through how you feel about the change.