Rheumatoid arthritis and breast cancer

I had mastectomy in 2011 and almost immediately developed rheumatoid arthritis. I believe it was due to trauma of cancer. I suffer night bad sweats and got relief from venaflaxine for a while until they started making me sweat profusely in the day! I am now on gabapentin which seemed to help once I increased the dose but the extreme tiredness was so bad I had decrease the dose but still sleeping far too much and the sweats are back on this lower dose. I take arthritis drugs which also cause tiredness so not sure where to go from here. Some drugs inhibit tamoxifen or are not allowed with methotrexate so it is so hard to find something that works with both. Also antidepressants are difficult as I am limited. I was put on sertraline but now am told they inhibit tamoxifen. So its exhausting trying to find compatible drugs for both these conditions. Anyone ?

Hi catherinthegr, 

I am very sorry to hear you are going through this difficult time and are experiencing these side effects. I am sure any users with similar experiences will be along to share and show their support. 

In the meantime please do call our helplineat 0808 800 6000 who will be able to help answer your questions about your side effects and gabapentin. The opening hours are below. 

Monday-Friday, 9am-5pm
Late opening Wednesday 9am-7pm,
Saturday, 9am-1pm

Best wishes, 

Lizzy