Doctor insights on: Is diphenhydramine safe for hypothyroid

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Dr. Su Fairchild
1,247 Doctors shared insights

Hypothyroidism (Definition)

When the thyroid gland is overactive and too much thyroid hormone is produced, which speeds up metabolism. This results in weight loss, a quick heartbeat, sweating, nervousness, ...Read more


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Is it ok to take Benadryl (diphenhydramine) if pregnant and currently taking levothyroxine for hypothyroidism?

Is it ok to take Benadryl (diphenhydramine) if pregnant and currently taking levothyroxine for hypothyroidism?

Yes.: No problem - talk to your obstetrician to see if Benadryl (diphenhydramine) is best choice and do not drive or operate heavy machines while drowsy. ...Read more

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Is it safe to take diphenhydramine after surgery?

Is it safe to take diphenhydramine after surgery?

Most likely: Benedryl is pretty innocuous. If you happen to have some itching or allergy reaction from any of your surgery meds or dressings, you may take it. Same if you need sleep and just need the benedryl for sedation. Take your other medications as prescribed, and let your surgeon about any other meds you are taking, just to keep him/her informed. ...Read more

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Is it safe to take diphenhydramine after surgery?

Is it safe to take diphenhydramine after surgery?

What for?: Diphenhydramine is the generic name for the antihistamine with the brand name of Benadryl (diphenhydramine). It is generally taken every 6 hours and its main side effect in 2/3 of patients is they feel tired. In general there is no contraindication for you to avoid it after surgery per se. ...Read more

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Is it safe to mix diphenhydramine with dimenhydrate?

Is it safe to mix diphenhydramine with dimenhydrate?

I wouldn't.: They are very similar drugs and closely related chemically. Their side effects are identical and would be additive if you took the two together. ...Read more

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Is it safe to take expired benadryl (diphenhydramine)?

Is it safe to take expired benadryl (diphenhydramine)?

No: Medications have expiration dates for a reason. If a medication is expired it is probably best to not use this medication. ...Read more

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Is it safe to take 100mg of Benadryl (diphenhydramine)?

In one dose no: In divided doses over the day every 6 - 8 hours, yes, please read the labels and don't exceed the recommended dosage ...Read more

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Is taking Benadryl (diphenhydramine) with codeine safe?

Is taking Benadryl (diphenhydramine) with codeine safe?

Benadryl (diphenhydramine) & Codeine: Hello. Benadryl (diphenhydramine) and codeine taken together could make you sleepy so please make sure that you are not driving, operating equipment, or involved in any activities which require your cognition to be 100% on point!

Are you taking Benadryl (diphenhydramine) to counteract itching from codeine? If so, you may need to talk to your provider about trying something different. ...Read more

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Is Benadryl (diphenhydramine) cream safe for 2 year olds?

Is Benadryl (diphenhydramine) cream safe for 2 year olds?

Topical Benedryl: Topical Benedryl is considered safe to use in toddlers. It is not recommended if the child is also taking oral Benedryl at the same time. ...Read more

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Is Benadryl (diphenhydramine) 25mg and 2 alcohol drinks safe?

Count as 3 -4 drinks: Since the effect of a Benadryl (diphenhydramine) may equal to 1-2 extra drinks (on drowsiness and driving), you will need to take that into calculation. Cut you drinking by 2 if you take Benadryl (diphenhydramine) just to be safe. ...Read more

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Is it safe to break a 25mg Benadryl (diphenhydramine) pill in half?

Yes.: Any uncoated tablet that is not made to digest slowly can be broken. "time capsules", long-acting delivery systems, and coated pills should be left alone. But sometimes it can save you money to get a prescription for a higher-strength pill that you can cut yourself with a pill cutter. For example, instead of taking 1 50mg tablet twice a day you can take 1/2 of a 100mg tablet twice a day. ...Read more

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Is it safe to take ambient and Benadryl (diphenhydramine) tigether?

Check with doc: Both cause sleepiness so combined makes even more so. Both can hurt you if you take too much, alone or together. It also depends on what other meds, drugs/alcohol, caffeine, you're taking & why you need the med in the first place. Good sleep is often obtained through good habits, and enough daily exercise & proper diet, to ensure a sound sleep. I bet a lot of marathon runners were ex-insomniacs! ...Read more

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Is it safe for an adult to take 75 mg of benadryl (diphenhydramine)?

Yes: It is OK but we need other information about you to justify this on a regular basis ...Read more

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Benadryl (diphenhydramine) and melatonin safe to take at the same time?

Benadryl (diphenhydramine) and melatonin safe to take at the same time?

Melatonin: Unless otherwise advised by your doctor, yes it is safe. ...Read more

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How safe and effective is 50mg of Benadryl (diphenhydramine) for sleep?  

Very: Diphenhydramine is the active ingredient in bendryl, and is also used on multiple other bedtime over the counter preparations to cause drowsiness - i.e., tylenol (acetaminophen) pm, simply sleep, etc. ...Read more

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I was curious if benadryl (diphenhydramine) is safe to take with percocets.

I was curious if benadryl (diphenhydramine) is safe to take with percocets.

Careful. Drowsiness.: Both narcotics and traditional antihistamines cause drowsiness and "groginess"; ask your pharmacist or provider for instructions before taking them together; and don't drive. That being said, it is not unusual to see strong (prescription) cough suppressants containing both a narcotic and an antihistamine. Why are you taking both? Perhaps for sleep? Ask for an alternative. ...Read more

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Can melatonin and Benadryl (diphenhydramine) be mix and safe to use together?

Yes: But both have sedative properties and can lead to some hangover effects in the morning if taken for sleep, take as low a dose of melatonin as possible, 90min before desired sleep time. ...Read more

Dr. John Chiu
1,047 Doctors shared insights

Diphenhydramine (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more