Astagraf XL and Citric acid, potassium citrate, and sodium citrate

In the database of official manuals used in the service creation an interaction registered by statistical results of studies was found, which can either lead to negative consequences for the patient health or strengthen a mutual positive effect. A doctor should be consulted to address the issue of joint drug administration.

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

In vitro data suggest that the presence of antacids may reduce the bioavailability of tacrolimus. An in vitro study showed that tacrolimus incubated in 100 mL simulated gastric fluid with the equivalent of 500 mg of various antacids resulted in loss of tacrolimus, due presumably to a pH-mediated degradation of tacrolimus. Specifically, aluminum-magnesium hydroxide caused a 14% loss of tacrolimus in 24 hours, magnesium oxide caused a 98% loss in 12 hours, and calcium carbonate caused a 30% loss in 24 hours. In contrast, aluminum hydroxide gel caused an immediate 35% loss of tacrolimus (within 2 minutes) and no further loss for 24 hours, suggesting adsorption of tacrolimus. Whether these effects occur in vivo, and to what extent, are unknown. Sodium bicarbonate has been reported to cause widely variable trough plasma levels and reduced blood concentrations of tacrolimus when given close to the time of administration of tacrolimus. No other details were available in the report. However, in a single-dose study, administration of tacrolimus with aluminum-magnesium hydroxide in healthy volunteers resulted in a 10% and 21% increase (not decrease) in tacrolimus peak concentration (Cmax) and systemic exposure (AUC), respectively, compared to administration without aluminum-magnesium hydroxide.

Astagraf XL

Generic Name: tacrolimus

Brand name: Astagraf XL, Envarsus XR, Prograf, Hecoria

Synonyms: n.a.

What is Astagraf XL?

Citric acid, potassium citrate, and sodium citrate

Generic Name: citric acid / potassium citrate / sodium citrate

Brand name: Cytra-3, Polycitra, Polycitra-LC, Tricitrates, Virtrate-3

Synonyms: Citric Acid, Sodium Citrate, and Potassium Citrate

What is Citric acid, potassium citrate, and sodium citrate?