For example, if its 1000 mcg/mL, then 1 mL has 1000 mcg (or 1 mg) of Vitamin B12
The agency asked the committee whether adults under the age of 65 should be given a booster six months or later after receiving their second dose
doi:10.1038/d41586-020-02926-w
The possibility of overdosing on vitamin D , which can lead to hypercalcaemia high levels of calcium in the blood with symptoms like nausea and weakness

It contains a powerful retinoid (vitamin A derivative) primarily prescribed by dermatologists to treat severe, treatment-resistant nodular or cystic acne that has failed to clear with other therapies like oral antibiotics or topical treatments.Because isotretinoin is a high-potency medication with strict safety regulations, it should only ever be taken under direct medical supervision. How It WorksIsotretinoin targets the root causes of severe acne simultaneously by:Shrinking sebaceous glands to dramatically reduce oil (sebum) production.Preventing clogged pores by normalizing how skin cells shed.Decreasing inflammation and limiting the growth of acne-causing bacteria.Preventing permanent physical scarring and deep tissue damage. Standard Usage GuidelinesAdministration: It must be swallowed whole with waternever crushed, split, or chewed.Take with Food: For maximum absorption, take the capsule during or immediately after a main meal containing some healthy fats (like milk, yogurt, or oil).Duration: A typical therapeutic course spans between 16 to 24 weeks

Side effects include: Local pain & tissue staining (brown discoloration), headache, light-headedness, fever, nausea, flushing, urticaria, bronchospasm, and rarely anaphylaxis & death