Hi @jo_c
I've been on zoladex for nearly a year now. In terms of side effects there are the usual menopause symptoms due to the drug working but I haven't found them to be any worse than expected. I tend to feel a bit more icky day or so after each injection but nothing terrible.
The other thing to consider with the zoladex is the inconvenience, pain, cost etc of having to get them every 4 weeks. Depending on your doctor or nurse the pain/bruising will vary each time. I find the inconvenience of yet another trip to the hospital for my injection frustrating and time consuming and just another reminder of what's going on. Cost although not huge still adds up over time. But you would have to weigh up what potential side effects you might have with changing tablets as well. Never an easy answer but hopefully with some research you can make a decision that works for you and I assume you can always change your mind if the treatment path you choose isn't suited to your body.
Sending love