Calcium carbonate
| Interaction Color Code | Clinical Bottom Line | Clinical Effects | Drug 1 effect | Drug 2 dose | Drug 2 effect | Management | |
|---|---|---|---|---|---|---|---|
| Raltegravir Calcium carbonate 323 | Red: Avoid combination | Do not coadminister: Reduced levels of raltegravir | Raltegravir AUC decreased 72%; Cmin decreased 48% |
3000 mg single dose given with raltegravir | Not reported |
Contraindicated. Use alternative agents. |
|
| Raltegravir Calcium carbonate 322 | Red: Avoid combination | Do not coadminister: Reduced levels of raltegravir | Raltegravir AUC decreased 10%; Cmin decreased 57% |
3000 mg single dose given 12 hours after raltegravir | Not reported |
Contraindicated. Use alternative agents. |
|
| Raltegravir Calcium carbonate 294 | Green: Administer standard doses | Administer standard doses | Raltegravir AUC decreased 55%; Cmin decreased 32% |
3000 mg single dose | Not reported |
||
| Elvitegravir Calcium carbonate 147 | Yellow: Adjust dosing | Adjust dosing to avoid decreased elvitegravir efficacy | Potential decrease in antiretroviral efficacy |
Separate elvitegravir / cobicistat from medications containing polyvalent cations by at least 2 hours. |
|||
| Elvitegravir Calcium carbonate 146 | Yellow: Adjust dosing | Adjust dosing to avoid decreased elvitegravir efficacy | Potential decrease in antiretroviral efficacy |
Separate elvitegravir / cobicistat from medications containing polyvalent cations by at least 2 hours. |
|||
| Dolutegravir Calcium carbonate 93 | Yellow: Adjust dosing | Adjust dosing to avoid reduced levels of dolutegravir | Potential decrease in antiretroviral efficacy if taken without food |
Cmax decreased 37%, AUC decreased 39%, Cmin decreased 39% if taken together, fasting conditions. No significant change in dolutegravir AUC if taken 2 hours before calcium carbonate or if taken simultaneously with food. |
1200 mg | Not studied |
Administer dolutegravir 2 hours before or 6 hours after calcium-containing supplements. Alternatively, administer dolutegravir simulatenously with calcium supplements and with food. |
| Dolutegravir Calcium carbonate 92 | Yellow: Adjust dosing | Adjust dosing to avoid reduced levels of dolutegravir | Potential decrease in antiretroviral efficacy if taken without food |
Cmax decreased 37%, AUC decreased 39%, Cmin decreased 39% if taken together, fasting conditions. No significant change in dolutegravir AUC if taken 2 hours before calcium carbonate or if taken simultaneously with food. |
1200 mg | Not studied |
Administer dolutegravir 2 hours before or 6 hours after calcium-containing supplements. Alternatively, administer dolutegravir simulatenously with calcium supplements and with food. |
| Dolutegravir Calcium carbonate 91 | Yellow: Adjust dosing | Adjust dosing to avoid reduced levels of dolutegravir | Potential decrease in antiretroviral efficacy if taken without food |
Cmax decreased 37%, AUC decreased 39%, Cmin decreased 39% if taken together, fasting conditions. No significant change in dolutegravir AUC if taken 2 hours before calcium carbonate or if taken simultaneously with food. |
1200 mg | Not studied |
Administer dolutegravir 2 hours before or 6 hours after calcium-containing supplements. Alternatively, administer dolutegravir simulatenously with calcium supplements and with food. |
| Bictegravir Calcium carbonate 64 | Yellow: Adjust dosing | Adjust dosing to avoid reduced levels of bictegravir | Potential decrease in antiretroviral efficacy |
If administered simultaneously in the fasted state Cmax decreased 42%, AUC decreased 33%. If administered simultaneously in the fed state Cmax decreased 10%, AUC increased 3% |
1200 mg single dose | Not reported |
Bictegravir should be administered simultaenously with calcium carbonate supplements, with food. |
| Bictegravir Calcium carbonate 63 | Yellow: Adjust dosing | Adjust dosing to avoid reduced levels of bictegravir | Potential decrease in antiretroviral efficacy |
If administered simultaneously in the fasted state Cmax decreased 42%, AUC decreased 33%. If administered simultaneously in the fed state Cmax decreased 10%, AUC increased 3% |
1200 mg single dose | Not reported |
Bictegravir should be administered simultaenously with calcium carbonate supplements, with food. |

