Hi,
Hope the trip goes well. Back in 1999 I was living in Moscow and was taken ill. I spent 3 weeks in the main hospital there (where Boris Yeltsin had his heart attacks) before being flown home.
You do need ALL your own supplies as they might not have the same.
You also need to learn to specify 'byez sakhara' whenever you order a tea/coffee - since it's customary for them to put sugar in the pot they serve it from (Russians love their sugar... I recall asking my host's husband one day if he would like some more tea with his sugar - after he almost filled his teacup with sugar lumps before drenching it all in tea!) If you use sweetners, take your own but in the original packaging!
And if ever you do need medical help, make sure you have CASH. I had a valid insurance policy, but it still cost me about $1200 US before they agreed to admit me to hospital. I claimed it back once in the UK, but it was a bit of a shock.
I take it they still hide their disabled people away from public view then? On one trip there (by landrover) we had a disabled boy in our convoy (his dad thought it'd be a better education than sat behind a desk). In Belarus we took him out in his wheelchair - at which point one of our Russian friends told us 'We don't have these problems here'! She honestly believed that too.
Do svidanya,
Rose