Alongside a metallic taste in the mouth, an itchy or tingling tongue can be a sign of vitamin B12 deficiency
Supports Red Blood Cell Production Vitamin B12 is crucial for the development of healthy blood cells
It is not medical advice and should not be used as a substitute for guidance from a licensed healthcare provider
The patient may require longer observation periods depending on the medication they receive Provide education to the patient and their family on signs and symptoms to monitor for, e.g., pain, redness, abscess, bruising at the site or anaphylaxis Warm or cold compresses can be applied to the area for comfort Companion documents Procedure Management Guideline Allergic and anaphylactic reactions RCH Policy and Procedure: Medication Management RCH Policy and Procedure: Hazardous Medicines - Safe handling of How to don and remove Personal Protective Equipment (PPE) Links The Australian Immunisation Handbook (health.gov.au) Evidence table The evidence table for this guideline can be accessed here

Seek emergency medical attention (call 999) if you experience: Difficulty breathing or swallowing Swelling of the face, lips, tongue, or throat Widespread rash or hives developing rapidly Severe dizziness or feeling faint Chest tightness or wheezing Anaphylaxis to hydroxocobalamin is uncommon but documented in the product information
Metabolism support ties it all together