Bictegravir and Metformin Interaction

Drug interaction information between Bictegravir and Metformin.

Bictegravir and Metformin have a documented moderate interaction in FDA labeling.

FDA drug labeling documents a moderate-severity interaction between Bictegravir and Metformin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.

Drug A

Bictegravir

Integrase Inhibitor / NRTI Combination

Drug B

Metformin

Biguanide

How They Interact

This HIV medication can increase the amount of metformin that stays in your blood. This happens because the medicine interferes with how metformin is cleared from your system.

FDA Label Information

Metformin ↑ Metformin Refer to the prescribing information of metformin for assessing the benefit and risk of concomitant use of BIKTARVY and metformin.

Frequently Asked Questions

What SPL severity band is on file for Bictegravir/Emtricitabine/Tenofovir + Metformin?

Compiled FDA labeling labels this pair moderate. That is a source-record field, not an individual medication-combination decision.

Which drug in this pair has the larger labeled-interaction portfolio?

Metformin has 27 labeled pairs on file vs Bictegravir's 19. In the moderate band specifically: Bictegravir has 1; Metformin has 10 (also Dolutegravir/Lamivudine, Empagliflozin, Empagliflozin/Linagliptin, Ertugliflozin).

What mechanism field is on file for Bictegravir/Emtricitabine/Tenofovir and Metformin?

This HIV medication can increase the amount of metformin that stays in your blood. This happens because the medicine interferes with how metformin is cleared from your system.

Bictegravir carries more major-labeled pairs than Metformin

SPL source-record counts only. This page's band is moderate · classes on file: Bictegravir (Integrase Inhibitor / NRTI Combination); Metformin (Biguanide).

Bictegravir has 2 major-labeled pairs vs Metformin's 0. This page itself is in the moderate band, not the major band.

Bictegravir

2 major · 1 moderate · 16 minor · 19 total

Bictegravir has no other moderate-band peer in this dataset besides Metformin.

Metformin

0 major · 10 moderate · 17 minor · 27 total

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.