Molecular Weight Consideration

Molecular weight consideration influences drug properties affecting pharmacokinetics and formulation. Drugs <500 Da achieve superior oral bioavailability. Molecular weight >1000 Da limits cell membrane penetration. Protein drugs exceeding 5000 Da require injection. Formulation strategies address molecular weight constraints.

Lipophilicity optimisation accounts for molecular weight effects. Regulatory submissions justify molecular weight selections. Post-approval monitoring confirms bioavailability. Emerging drug delivery systems overcome molecular weight limitations. Medicinal chemistry iteratively optimises molecular weight.