Drug Interaction Checker

Find out if your medicines are safe to take together.

1 Add each medicine you take: the brand on the box or the medicine inside it.
2 We check every pair, including each ingredient of combination medicines.
3 See what could happen and what to do, in plain language.

Your medicines

Only minor interactions found

The interactions we found are minor. You usually do not need to change anything, but tell your doctor or pharmacist about every medicine you take.

1 Minor 1 pair checked

1 interaction

Fulvest Fulvestrant Ketoconazole

Minor

Fulvestrant is broken down by the CYP 3A4 enzyme in lab tests. However, studies with ketoconazole did not show any change in how the body handles fulvestrant.

What should I do?

Little or no effect is expected. You usually do not need to change anything, but still tell your doctor or pharmacist about every medicine you take.

Feeling unwell after taking your medicines? For an emergency call 999. For free advice from a doctor, call the 16263 health line (Shasthya Batayon), any time.

What do Major, Moderate and Minor mean?

Major

The combination can cause serious harm or stop a medicine from working. Usually avoided, or only used with close medical supervision.

Moderate

The combination may need care: a different dose, taking them at different times, or extra check-ups.

Minor

Little or no effect is expected. Usually nothing needs to change.

Duplicate

Two of your medicines contain the same ingredient, which can add up to a double dose.

Important: This checker lists interactions found in medicine leaflets and may not be complete. It does not know your dose, your health conditions, or food and supplement interactions. Never start, stop or change a medicine because of this tool alone: ask a registered doctor or pharmacist.