What Causes Vertigo When Corticosteroids And Insulin Are Taken Together?
None
Detailed Answer:
To the best of my knowledge, there is no published medical literature that has reported any vertigo when corticosteroids and Insulin are taken by the same individual.
However, there are a couple interactions between these two medications.
One is the glucose raising tendency of corticosteroids which may oppose the glucose-lowering effect of insulin. So when a person is taking these 2 mediations together, his or her diabetes control may not be as good as it would possibly have been without the corticosteroid on board. By the same token, persons with diabetes who are taking insulin are also generally prone to low blood glucose reactions. Owing to corticosteroids it is possible that such episodes may occur less frequently or be of less severity, because corticosteroids are notorious to elevate blood sugar levels (particularly in high doses).
When blood glucoses run high, it is possible to have various symptoms, some of which may mimic vertigo.
Secondly, if corticosteroids are used for greater than 3 weeks (over and above a certain dose threshold) and then stopped suddenly, a condition called adrenal insufficiency may result. Low blood glucoses can occur in this situation, which can be made worse by the presence of Insulin. Vertigo-like symptoms are very much possible during such 'hypoglycemic' attacks.
Corticosteroids like hydrocortisone can actually be given simultaneously in the same intravenous infusion as Insulin using a specific tubing technique. (Intravenous infusion refers to direct delivery of medications into the veins in a drip form). So they are compatible when administered together at same time.
Follow up
Detailed Answer:
You will need to see your Internist to get to the bottom of this, who may consider referring you to a cardiologist and neurologist.
Next time you get these symptoms, see if it is possible for someone to check your blood glucose level using a home monitoring device such as a glucometer. If the level is greater than 70 mg/dl, low blood glucose is extremely unlikely as the cause of your symptoms.