AS04 Adjuvant

A proprietary vaccine adjuvant composed of the inorganic compound aluminum phosphate mixed with 3-deacylated monophosphoryl lipid A, a derivate of the bacterial endotoxin. The aluminum component of this adjuvant binds to the protein conjugate, resulting in improved antigenicity, whereas the modified lipid A component enhances the immune responses by activating monocytes, macrophages and cytokines. Combined with vaccine antigens, AS04 adjuvant may help to boost the host's immune responses. (NCI Thesaurus)

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AS02A

An oil-water emulsion comprised of QS21 and 3D-MPL used as a vaccine adjuvant to improve T-helper cells and antibody response.

As Needed

Indicates that a drug or therapy should be used as often as the patient decides it is necessary.

As Necessary

As needed, usually referring to the timing of the administration of a treatment or medication.

As Much As Possible

A response that indicates the largest amount imagined.

As Much as Desired

As much as desired.