Drug Interactions between aminophylline / ephedrine / guaifenesin / phenobarbital and tirzepatide

Using PHENobarbital together with aminophylline may decrease the effects of aminophylline. Contact your doctor if your condition changes or if you experience breathing difficulties. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. 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 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.

EPHEDrine may interfere with blood glucose control and reduce the effectiveness of tirzepatide and other diabetic medications. Monitor your blood sugar levels closely. You may need a dose adjustment of your diabetic medications during and after treatment with ePHEDrine. 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 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 aminophylline to become most effective, if aminophylline 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.

Information for this minor interaction is available on the professional version.