Drug Interaction Report

Tirzepatide may affect the absorption of oral medications, as it can delay the emptying of stomach content into the intestines. This may impact blood levels and/or the time that it takes for PHENobarbital to become most effective, if PHENobarbital is being administered by mouth or directly into the stomach via a feeding tube. These effects are most apparent at the start of treatment with tirzepatide or after a dose increase and tend to diminish the longer that you are on a stable regimen of tirzepatide. Contact your doctor if you have any questions or notice a change in how any of your oral medications are working. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Ask your doctor before using PHENobarbital together with ethanol (alcohol), this can add to dizziness, drowsiness and other side effects of PHENobarbital. Be careful if you drive or do activities that require you to be awake and alert. Talk with your doctor before using any medications together, or drinking alcohol with PHENobarbital. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Tirzepatide may affect the absorption of other medications that you take by mouth. In some cases, this may affect how well and/or how fast those medications work, or it may make no difference. Talk to a healthcare provider if you have any questions or concerns, and contact your doctor if your symptoms worsen or your condition changes. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.