Niacin: Niacin, which is a very common B vitamin and is suggested to lower cholesterol, it has been known to result in a hyperglycemic tendency within a person that has diabetes.

See my comment after this list...

Thyroid hormone: When levels of thyroid hormones are elevated, blood glucose levels are raised because of the reduction of insulin coming from the pancreas.

The author of this listing totally missed the point about thyroid hormone therapy. People with diabetes can and indeed must be treated with thyroid hormone if they have hypothyroidism (underactivity of the thyroid gland). The statement that elevated thyroid hormone levels cause elevated BG levels is true, but irrelevant unless the patient has been overdosed with thyroid hormone, or has a separate disorder, hyperthyroidism (overactive thyroid gland function).

Diphenylhydantoin: The common name for this drug is called Dilantin which is recommended to people to help control seizures. However, it also blocks the release of insulin.

Another name for this drug, not mentioned in the original article, is phenytoin. See my comment in the next paragraph...

Well, that's nine medications (or more strictly speaking, nine medications or classses of medications). It's my opinion that these drugs are perfectly reasonable for PWD to use, if there's a medical indication for them, and if the prescribing physician, the dispensing pharmacist, and most importantly you, are aware of the likelihood that they may affect your diabetes.

For most of these, the side effect will be to cause BG to rise. As I point out elsewhere, PWD should plan to check their BG for at least three days after any doctor changes any of your medications. That advice applies to these nine medications, and to any other new drug, whether prescription or over-the-counter.

For someone to make the absurd statement that these are "9 Common Drugs That Every Diabetic Should Avoid Mixing With Their Meds" is simply wrong, irresponsible, and balderdash.