Interaction Check

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MultiCheck Results - 4 Interactions

Avoid/Use Alternative
Estrostep Fe (norethindrone/ ethinyl estradiol) + Ortho Micronor (norethindrone)
Avoid/Use Alternative norethindrone (contraceptive) + norethindrone (contraceptive) avoid combo: combo may incr. risk of thromboembolism, other adverse effects (additive effects, duplicate therapy)
Monitor/Modify Tx
Colestid (colestipol) + Estrostep Fe (norethindrone/ ethinyl estradiol)
Monitor/Modify Tx colestipol + ethinyl estradiol (contraceptive) give oral contraceptive at least 1h before or 4h after each colestipol dose: combo may decr. ethinyl estradiol levels, contraceptive efficacy (absorption decreased/delayed) colestipol + norethindrone (contraceptive) give oral contraceptive at least 1h before or 4h after each colestipol dose: combo may decr. norethindrone levels, contraceptive efficacy (absorption decreased/delayed)
Colestid (colestipol) + Ortho Micronor (norethindrone)
Monitor/Modify Tx colestipol + norethindrone (contraceptive) give oral contraceptive at least 1h before or 4h after each colestipol dose: combo may decr. norethindrone levels, contraceptive efficacy (absorption decreased/delayed)
Additional Considerations
colestipol in Colestid
give oral drugs at least 1h before or 4h after colestipol; bile acid sequestrant may delay or decr. absorption of concomitant oral drugs