Skip to main content

Using chloramphenicol with other medicines and herbal supplements - Brand name: Optrex (with chloramphenicol)

Cautions with other medicines

There are some medicines that do not mix well with chloramphenicol.

Check with a pharmacist or your doctor if you're taking (or have recently taken) any other medicines, including:

  • medicines for cancer such as cyclophosphamide
  • medicines for problems with the immune system such as azathioprine or methotrexate

These are not all the medicines that may cause problems if you take them with chloramphenicol. For a full list, see the leaflet inside your medicine packet.

Mixing chloramphenicol with herbal remedies and supplements

There's not enough information to say that complementary medicines and herbal remedies are safe to take with chloramphenicol. They're not tested in the same way as pharmacy and prescription medicines. They're generally not tested for the effect they have on other medicines.

Important: Medicine safety

Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.

Page last reviewed: 30 January 2026
Next review due: 30 January 2029