Are Benadryl and Zyrtec the Same Thing?
Benadryl (diphenhydramine) and Zyrtec (cetirizine hydrochloride) are antihistamines used to treat allergy symptoms, such as itching, hives, runny nose, watery eyes, and sneezing from hay fever (allergic rhinitis) and other allergies, such as allergies to molds and dust mites.
A main difference between Benadryl and Zyrtec is that Zyrtec tends to cause less drowsiness and sedation than Benadryl.
What Are Possible Side Effects of Benadryl?
Side effects of Benadryl include:
- disturbed coordination,
- dry mouth/nose/throat,
- difficulty urinating or an enlarged prostate,
- upset stomach,
- blurred vision,
- double vision,
- loss of appetite,
- headache, or
What Are Possible Side Effects of Zyrtec?
Common side effects of Zyrtec include:
- tired feeling,
- dry mouth,
- sore throat,
- constipation, or
In children, side effects of Zyrtec include:
- stomach pain and
The side effect of sleepiness may occur when taking Zyrtec, so do not drive a car or operate potentially dangerous machinery.
What Drugs Interact With Benadryl?
Benadryl may interact with other medicines that make you sleepy (such as cold or allergy medicine, sedatives, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety).
Benadryl may also interact with monoamine oxidase inhibitors (MAOIs).
What Drugs Interact With Zyrtec?
Zyrtec may interact with alcohol, other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety).
How Should Benadryl Be Taken?
A typical dose of Benadryl is 25-50 mg every 4-6 hours. Benadryl may interact with monoamine oxidase inhibitors (MAOIs), other over-the-counter cough, cold, allergy, or insomnia medications, anxiety or sleep medicines, antidepressants, or any other medications that make you feel drowsy, sleepy, or relaxed. Tell your doctor all medications and supplements you use. Benadryl has not been adequately evaluated in pregnant women. Benadryl is secreted in breast milk. Because of the risk of stimulation and seizures in infants, especially newborns and premature infants, antihistamines should not be used by nursing mothers.
How Should Zyrtec Be Taken?
Adults and children 6 years and over should take one 10 mg capsule once daily; do not take more than one 10 mg capsule in 24 hours. A 5 mg product may be appropriate for less severe symptoms.
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RxList. Benadryl Medication Guide.
RxList. Zyrtec Side Effects Drug Center.