The Living Pharmacy Project is the first pharmaceutical social assistance project developed in Brazil based on the scientific use of medicinal plants. Among the standardized formulations in gelatin capsules hard, stands out the dry extract of passion fruit. The formulation of these capsules requires an addition of excipients, that has important role in the quality, safety, and performance of the drug. The purpose of this study was to standardize the excipients for capsule formulations produced in the Living Pharmacy Project. Was conducted a literature review of the various excipients and herbal medicines and analysis of the package leaflet of the drugs. Thirty capsules of the phytotherapeutic agent were produced and subjected to quality control to evaluate the average weight variation, including the coefficient of variation and standard deviation. The suggested excipients for the passion fruit formulation were sodium starch glycolate (8%) as a disintegrant, magnesium stearate (0.5%) as a lubricant, sodium lauryl sulphate (2%) as wetting agent, colloidal silicon dioxide (0.5%) as a glidant, pharmaceutical talc (1%) as an adsorbent, pharmaceutical starch (22%) as a hydrophobic diluent, and lactose monohydrate (66%) as a hydrophilic diluent. All quality control results met the pharmacopoeia specifications.