Generally well tolerated
A deficiency can lead to fatigue and trouble focusing, which makes sticking to a diet and exercise routine harder
[1] Whilst vitamin B12 deficiency can cause serious health consequences including megaloblastic anaemia and neurological damage, supplementation is generally considered safe
The dose is often very high, as most of it will pass through your digestive system and be excreted by your body
## **Other relevant codes** Other relevant HCPCS codes related to HCPCS Q5123 (Injection, rituximab-arrx, biosimilar, Riabni 10 mg) include codes for other rituximab biosimilars and related biologic drugs: - Q5115: Injection, rituximab-abbs, biosimilar, 10 mg (Truxima) - Q5119: Injection, rituximab-pvvr, biosimilar, 10 mg (Ruxience) - J9312: Injection, rituximab, 10 mg (reference rituximab drug) - J9311: Injection, rituximab 10 mg and hyaluronidase (combination product) - J3590: Unclassified biologics (used sometimes for unspecified biologics) - Q5122: Injection, pegfilgrastim-apgf, biosimilar, 0.5 mg - Q5124: Injection, ranibizumab-nuna, biosimilar, 0.1 mg Frequently asked questions