Can I take Fibre supplements and Metformin together?

لماذا يحدث هذا

Fibre supplements (like psyllium husk or glucomannan) work by soaking up water and forming a gel in your gut. This gel can trap the metformin molecules, slowing down or reducing the amount of medicine that passes through your intestinal wall into your bloodstream.

You do not need to stop taking either, but it is best to separate the doses. Try to take your metformin at least 2 hours before or 4 to 6 hours after taking a fibre supplement. Always monitor your blood sugar levels regularly and speak to your doctor if you notice your readings are consistently higher than usual.

Severe kidney or liver problems

You must not take metformin if you have severe kidney or liver failure, as this significantly increases the risk of lactic acidosis, a rare but life-threatening build-up of acid in the blood.

Choking and intestinal blockage

You must take fibre supplements with a full glass of water (at least 200ml). Taking them without enough liquid can cause the supplement to swell and block your throat or oesophagus, leading to choking or bowel obstruction.

Drug absorption interference

Fibre can prevent other medicines from being absorbed properly. Take your other medications at least 1 hour before or 2 to 4 hours after taking a fibre supplement.

خطر الحماض اللبني (الجفاف)

إذا أصبت بقيء شديد أو إسهال أو حمى عالية، توقف عن تناول الميتفورمين واتصل بالطبيب فورًا. يمكن أن تؤدي هذه الحالات إلى جفاف شديد، مما يزيد بشكل كبير من خطر تراكم نادر ولكنه مهدد للحياة للحمض في الدم (الحماض اللبني).

فحوصات صبغة التباين (مثل الأشعة المقطعية أو الأشعة السينية)

يجب أن تخبر طبيبك أنك تتناول الميتفورمين إذا كنت ستخضع لفحص يتضمن حقن 'صبغة تباين'. عادةً ما تحتاج إلى التوقف عن تناول الميتفورمين قبل 48 ساعة وبعد الإجراء لمنع تلف الكلى.

الكحول

It is best to avoid or strictly limit alcohol when taking these supplements. Alcohol can contribute to dehydration, which increases the risk of the supplement causing constipation or a bowel blockage.

It is best to avoid or strictly limit alcohol while taking metformin. Combining alcohol with metformin increases the risk of a rare but serious condition called lactic acidosis (a build-up of lactic acid in the blood). It also increases the risk of low blood sugar (hypoglycaemia).

Water and fluids

You must drink plenty of water (at least 200ml per dose) when taking fibre supplements. If you do not drink enough fluid, the supplement can cause a blockage in your intestine or throat.

Vitamin B12 (Dietary sources)

Long-term use of metformin can lower your vitamin B12 levels. Ensure you eat foods rich in B12 (such as meat, fish, and dairy) or speak to your doctor about monitoring your levels.

Taking multiple medicines? Our مدقق تفاعلات الأدوية helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

إخلاء المسؤولية

هذه المعلومات لأغراض تعليمية عامة فقط ولا ينبغي الاعتماد عليها كبديل للنصيحة الطبية المهنية. استشر دائمًا طبيبك العام أو الصيدلي أو أي متخصص رعاية صحية مؤهل آخر قبل اتخاذ قرارات بشأن أدويتك. قد تختلف الظروف الفردية، ولا يمكن إلا لمتخصص الرعاية الصحية الذي يعرف تاريخك الطبي تقديم إرشادات مخصصة.