Nandrolone can get prescribed off label as adjunct therapy to aid in helping joint pain in certain countries. Muscle wasting diseases (or general muscle wasting post surgery etc), anaemia from renal failure or asplastic anemia, adjunct therapy for osteoporosis (increase bone density), and restoring positive nitrogen balance in catabolic states are all valid approved reasons for prescribing nandrolone. Back in the day it was also used to treat growth retardation in children (oxandrolone and fluoxymesterone replaced that, then growth hormone), anaemia (various causes), severe burns (oxandrolone replaced), advanced metastatic breast cancer and it may have been used as an eye drop medication in the form of nandrolone sulfate.
Prescribing guidelines as an anabolic after catabolic illness call for super, super low doses, like 25-50mg every 3-4 weeks, I’m not bashing medicine however these doses are too low to have any serious beneficial impact. For anemia the guidelines are a bit higher, like 100-200mg/wk and for aids doses can be even higher, with one study showing high efficiency and short term safety at 600mg/wk