I've been taking Avodart for BPH for about 6 months.
I'd be interested to know if any man here is also taking Avodart, and has had this apparent side effect: leg cramps after strenuous exercise.
I used to get mild cramps after mondo days, especially on the right side (there are other medical reasons for that bias). I could always exercise and massage out those minor cramps. However, in the last 5 months, I've had some cramps that are absolutely, incredibly debilitating. There is a mild forewarning, but when they hit, my whole leg seems to spasm, sometimes for hours afterward. I can be lying totally quiescent an hour later, and the spasms will come in waves.
If anything, I hydrate more than normal (for me). I get plenty of K in my diet.