Common side effects may include: drowsiness; dry eyes, blurred vision; dry mouth, nose, or throat; decreased urination; constipation; feeling restless or excited especially in children ; or day-time drowsiness or "hangover" feeling after night-time use.
Based on FDA pregnancy categories. Interactions What drugs and food should I avoid while taking Benadryl Diphenhydramine? Drinking alcohol can increase certain side effects of diphenhydramine. As a sleep aid , take diphenhydramine within 30 minutes before bedtime. You must chew the chewable tablet before you swallow it. Store at room temperature away from moisture and heat. What should I do if I missed a dose of Benadryl Diphenhydramine?
If you think you or someone else may have overdosed on: Benadryl Diphenhydramine , call your doctor or the Poison Control center. If someone collapses or isn't breathing after taking Benadryl Diphenhydramine , call What to Expect Benadryl is absorbed quickly in the body.
The medicine should continue to work for about four to six hours. Additional Dosage Information Your dosage will depend on your medical condition, age, and other factors. See More. Medical Disclaimer Drugs A-Z provides drug information from Everyday Health and our partners, as well as ratings from our members, all in one place. The information within all other sections is proprietary to Everyday Health. Read more. Cetirizine is a non-sedating antihistamine, which works by blocking histamine H1 receptors, which cause allergic symptoms.
Cetirizine, provides long-lasting, all day relief from allergy symptoms. Cetirizine is called a non-sedating antihistamine, and is therefore unlikely to cause drowsiness. However, some people may experience some slight drowsiness.
Pseudoephedrine is a decongestant, and works by acting on alpha receptors that lie on the walls of blood vessels, including those which supply blood to the nose and sinuses. When the drug acts on these receptors, the vessels constrict, reducing blood flow through the vessels. This decreases the swelling of the tissues around the nose and sinuses helping to relieve your congestion.
We reserve the right to change coupon offers at any time. Before you give a diphenhydramine product to a child, check the package label to find out how much medication the child should receive.
Give the dose that matches the child's age on the chart. Ask the child's doctor if you don't know how much medication to give the child. If you are taking the liquid, do not use a household spoon to measure your dose. Use the measuring spoon or cup that came with the medication or use a spoon made especially for measuring medication.
If you are taking the dissolving strips, place the strips on your tongue one at a time and swallow after they melt. If you are taking the rapidly dissolving tablets, place a tablet on your tongue and close your mouth.
The tablet will quickly dissolve and can be swallowed with or without water. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Diphenhydramine is usually taken as needed. If your doctor has told you to take diphenhydramine regularly, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule.
Do not take a double dose to make up for a missed one. Diphenhydramine may cause other side effects. Call your doctor if you experience any unusual problems while you are taking this medication. Keep this medication in the container it came in, tightly closed, and out of reach of children.
Store it at room temperature and away from excess heat and moisture not in the bathroom. It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.
To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them.
However, you should not flush this medication down the toilet. Some of these products contain just one ingredient, while others contain two ingredients. Because ingredients vary from one Benadryl product another, be sure to read the label closely before buying or using a Benadryl product. The following information describes dosages that are commonly used or recommended. Before giving Benadryl to a baby, talk with your doctor. Your doctor can also recommend the most appropriate dosage of Benadryl if treatment with the drug is needed.
For adults and children over 12 years of age, the maximum is mg each day. For children ages 6 to 12 years, the maximum is mg each day. Your body can develop a tolerance to some of the effects of Benadryl.
For instance, one study found that Benadryl caused sleepiness on the first day it was taken. But after the person took Benadryl for four days, this side effect no longer occurred. This was due to tolerance. When used over time, Benadryl continues to work to relieve symptoms of hay fever or allergies, runny nose, hives, and other conditions. They may suggest other treatment options that may be more effective for you. Benadryl can cause mild or serious side effects.
The following list contains some of the key side effects that may occur while taking Benadryl. For more information on the possible side effects of Benadryl or tips on how to deal with a troubling side effect, talk with your doctor or pharmacist. Some of these side effects may go away within a few days or a couple of weeks. Call your doctor right away if you have serious side effects. Serious side effects and their symptoms can include the following:.
There is very little scientific research about the long-term effects of Benadryl. Talk to your doctor about how often you have allergy symptoms. If you have symptoms frequently more often than about four days per week , there may be a safer, more effective medication for you than Benadryl. Benadryl and some other antihistamine drugs can sometimes cause decreased memory, confusion, and trouble thinking.
These side effects are more common in seniors. To prevent this possible side effect, Benadryl should be used in the lowest effective dose for the shortest time possible. If you need to take an antihistamine long term, talk with your doctor or pharmacist about other options.
However, they can occur in people who take very high doses of Benadryl. If you think you need medical treatment, call your doctor or Some antihistamines, including Benadryl, can worsen symptoms of restless legs syndrome.
If you have restless legs syndrome, talk with your doctor or pharmacist about other medication options. If you have symptoms of depression while taking Benadryl, talk with your doctor. Your doctor may want to evaluate your symptoms. They may also recommend different medication options.
Weight gain can happen in some people who take diphenhydramine. If you have weight gain while taking Benadryl, talk with your doctor or pharmacist about other medication options. Benadryl can cause constipation, especially when used regularly. If you have constipation, talk with your doctor or pharmacist about other medication options instead of Benadryl.
Because it can make you very sleepy, Benadryl can impair your ability to drive. Because of the risk of dangerous side effects in children, over-the-counter oral Benadryl products are only approved for use in children 6 years of age and older. The Food and Drug Administration FDA recommends that cough and cold products not be used in children under 2 years of age due to the risk of dangerous side effects, including sudden infant death.
These products often contain diphenhydramine generic Benadryl or other antihistamines, combined with other ingredients. Before giving oral Benadryl to children under 6 years, or cough and cold products to children under 2 years, talk with your doctor. They can also recommend the most appropriate medication and dosage if treatment is needed.
Over-the-counter oral Benadryl products are only approved for use in children ages 6 years and older. Benadryl products that are applied to the skin such as the cream, gel, or spray are only approved for use in children 2 years of age and older. Before giving Benadryl to your baby, talk with your doctor. If they decide that treatment with Benadryl is needed, your doctor can also recommend the most appropriate dosage of the drug.
But if your symptoms are severe, call or go to the nearest emergency room right away. Over-the-counter Benadryl is available in many different forms. Some are oral taken by mouth , and others are topical applied to the skin.
Forms include:. Store brands that contain diphenhydramine, the same ingredient in Benadryl, are available in other forms. These forms include:. No Benadryl or diphenhydramine product is available as a topical lotion or as eye drops. Benadryl may be safe for short-term use during pregnancy in some situations. For treatment of severe allergic reactions during pregnancy, injected diphenhydramine is often considered the first-choice treatment.
Diphenhydramine is the ingredient contained in Benadryl. This is due to a risk of eye disease in the newborn. Your doctor may want to evaluate your symptoms to determine the safest treatment. Taking Benadryl occasionally during breastfeeding is likely safe. However, taking Benadryl regularly or in large doses may cause side effects in a child who is breastfed.
It may also reduce your milk supply. Antihistamines that cause less sleepiness are usually preferred over oral Benadryl while breastfeeding. Benadryl is an antihistamine. There are several other antihistamines that can be used as alternatives. The first-generation antihistamines usually cause more sleepiness and other side effects than the second-generation antihistamines. Benadryl contains diphenhydramine, a first-generation antihistamine.
Examples of the other medications in these groups are listed below. You may wonder how Benadryl compares to other medications that are prescribed for similar uses. Below are comparisons between Benadryl and several medications.
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