2 doctors weighed in:

Why do cold medication labels instruct you to consult a doctor before use if you have a thyroid disorder?

2 doctors weighed in
Dr. Michael Wolfe
ENT - Head & Neck Surgery

In brief: Decongestants

Decongestants can exacerbate high blood pressure, causing dangerous spikes.
Some people have a type of thyroid disorder with too much thyroid hormone--hyperthyroidism--which can also cause high bp. Ann additive effect can be dangerous.

In brief: Decongestants

Decongestants can exacerbate high blood pressure, causing dangerous spikes.
Some people have a type of thyroid disorder with too much thyroid hormone--hyperthyroidism--which can also cause high bp. Ann additive effect can be dangerous.
Dr. Michael Wolfe
Dr. Michael Wolfe
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Dr. Susan Wingo
Internal Medicine - Endocrinology

In brief: More Side Effects

Most cough & cold remedies include a decongestant which mimics adrenaline and can cause the heart to beat too fast, or make people feel shaky or lightheaded.
Having too much thyroid hormone can also cause the heart to beat too fast, or make people feel shaky or lightheaded. Caffeine (coffee) and nicotine (smoking) can also do this. Combining two or three of these can make any symptoms much worse.

In brief: More Side Effects

Most cough & cold remedies include a decongestant which mimics adrenaline and can cause the heart to beat too fast, or make people feel shaky or lightheaded.
Having too much thyroid hormone can also cause the heart to beat too fast, or make people feel shaky or lightheaded. Caffeine (coffee) and nicotine (smoking) can also do this. Combining two or three of these can make any symptoms much worse.
Dr. Susan Wingo
Dr. Susan Wingo
Thank
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