red liquid vitamin b12 in a disposable syringe with a needle and in a glass ampoule on a white background.

red liquid vitamin b12 disposable syringe needle glass ampoule white background ampoules anaesthetise antipyretic cardiovascular diseases care clinic closeup cocarnit color concept coronavirus crimson diabetes injection disease doctor dose drug equipment flu health holding hospital illness injecting isolated laboratory macro medical medicament medicine nurse painkiller pharmacy science sport treatment vaccination vaccine virus vitamins lots empty space