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doi:10.1016/j.bcp.2024.116476 Preparation and storage Research-only handling information

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If you miss a scheduled injection or skip doses, the medication remains usable until the 28-day mark passes, provided storage conditions remain correct

this is the most common cause of vitamin B12 deficiency in the UK a lack of these vitamins in your diet this is uncommon but can happen if you have a vegan diet and do not take vitamin B12 supplements or eat foods fortified with vitamin B12, follow a fad diet or have a generally poor diet for a long time medicine certain medicines, including anticonvulsants and proton pump inhibitors (PPIs), can affect how much of these vitamins your body absorbs Vitamin B12 and folate deficiency are more common in older people, affecting around 1 in 10 people aged 75 or over and 1 in 20 people aged 65 to 74

Sterile water is only acceptable for immediate, single-use applications

Published research uses varying doses depending on the model and endpoint