Arguably the most effective AA. Can cause depression in some although comparatively rare, also rare liver toxicity, which is why the FDA doesn't like it. If depression it hits it is like walking into a wall, just be aware and seek medic advice ASAP.
It is by far the favourite of the Aussie endos though.
If depression or anxiety does hit, just go off it and see the endo, they will put you on Spiro, which can have more physiological side effects particularly low BP.