My wife was an oxygen user and we made several cruises, including from Italy and England. It can be done but there are several things to be aware of which can reduce logistical problems and costs. I'll be glad to answer questions.
Re: Re: Mom's on Oxygen and had a great time on Pride
My husband is on oxygen and our supplier arranges for a concentrator and portable tanks to be delivered to the ship and it is in the stateroom when we board. He also uses a wheelchair or electric scooter and we have never had any problems boarding or leaving the ship. Have sailed from Miami. Ft Lauderdale. Port Canaveral, and Tampa.
Just have your TA notify the cruise line when booking and they are very good about as
sisting with boarding and departing the ship. Hope this helps.