Abdul Mannan: Optimizing Eltrombopag Response Through Proper Timing
Abdul Mannan, Consultant Haematologist at Betsi Cadwaladr University Health Board, shared a post on LinkedIn:
“One glass of milk can cancel your eltrombopag dose.
Here’s why.
Eltrombopag doesn’t fail patients.
Bad timing does.
This is one of the most commonly missed drug-food interactions in haematology practice.
And it matters more than most people realise.
Eltrombopag chelates polyvalent cations.
Calcium, magnesium, iron, aluminium.
When these bind to the drug in the gut, absorption drops.
The platelet count doesn’t rise.
And the team wonders why treatment isn’t working.
Here’s the rule patients need to remember:
- Take it once daily, at the same time every day
- Take it on an empty stomach or with a low-calcium meal (50 mg calcium or less)
- Wait at least 2 hours before calcium-rich food, antacids, or mineral supplements
- Or wait 4 hours after if you’ve already eaten or taken them
- Dairy, antacids, multivitamins, and calcium-fortified drinks all count
Safe options at the time of dosing: water, unfortified juice, plain toast, rice, fruit, or lean meat.
Missed dose?
Take it at the usual time next day.
Never double up.
The SmPC for eltrombopag clearly states this interaction, yet in clinical practice, it’s underappreciated.
A patient taking eltrombopag with morning yoghurt and a multivitamin is essentially wasting half their dose.
Timing is therapy.
Have you come across patients with unexpectedly low response to eltrombopag?
Was the timing the issue?”

Other posts featuring Abdul Mannan on Hemostasis Today.
-
Oct 7, 2026, 16:44Amor Salah: 2026 NCS/SCCM Guidelines for Managing Antithrombotic-Associated ICH
-
Oct 7, 2026, 16:04NETs in Thrombosis: From Mechanism to Therapeutic Target
-
Oct 7, 2026, 15:28Amir Samimi: Prognostic Value of Platelet Count in Resected HNSCC
-
Oct 7, 2026, 15:21Eloïse Laouenan: Bridging Immunity and Thrombosis in MVTE
-
Oct 7, 2026, 15:10Uthra Sundaram: Honouring Donors During International Plasma Awareness Week
-
Oct 7, 2026, 15:04Daniel Victor Ortigoza: Should Frail Older Patients With AF Switch From VKA to DOACs?
-
Oct 7, 2026, 14:53Susan Noone: Donor Turned Recipient Shares Lifesaving Transfusion Story
-
Oct 7, 2026, 14:49Aimee Burtenshaw: The Impact of the Infected Blood Inquiry on Hospital Transfusion Laboratories
-
Oct 7, 2026, 14:41Vikash Jaiswal: Does Timing Matter for Calcium in Pre-Eclampsia Prevention?