3 doctors weighed in:

If i took an allegra at 11am, can I take Benadryl (diphenhydramine) 12 hours later?

3 doctors weighed in
Dr. James Ferguson
Pediatrics
2 doctors agree

In brief: Yes

Benedryl has some benefits as a really tenacious antihistamine that binds well with histamine & is very effective in that work.
Its drawback is sedation which occurs because it enters the brain & messes with messages between nerve cells. You can take benedryl along with a non-sedating antihistamine as long as you can handle the side effects.

In brief: Yes

Benedryl has some benefits as a really tenacious antihistamine that binds well with histamine & is very effective in that work.
Its drawback is sedation which occurs because it enters the brain & messes with messages between nerve cells. You can take benedryl along with a non-sedating antihistamine as long as you can handle the side effects.
Dr. James Ferguson
Dr. James Ferguson
Thank
Dr. Stephen Camacho
Family Medicine
1 doctor agrees

In brief: Benadryl (diphenhydramine)

The main risk of taking Benadryl (diphenhydramine) with the "non"sedating antihistamines in creating some drowsiness.
The closer together the increase likelihood for having drowsiness.

In brief: Benadryl (diphenhydramine)

The main risk of taking Benadryl (diphenhydramine) with the "non"sedating antihistamines in creating some drowsiness.
The closer together the increase likelihood for having drowsiness.
Dr. Stephen Camacho
Dr. Stephen Camacho
Thank
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