Benadryl Dosage



Benadryl Dosage Precautions and Side Effects

Benadryl dosage vary depending on the age and the prescription of your doctor. Benadryl is an antihistamine drug that is used to relive allergies and symptoms like sneezing, runny nose, watery eyes, and itching of the throat and skin. The active ingredient is Diphenhydramine HCl. It is commonly used as treatment for most kinds symptoms including itching from insect bites, stings, chicken pox, poison ivy, and other forms of allergies. Benadryl is also used for runny nose, puffy or watery eyes, sneezing, and itchiness whether they are caused by colds or allergies.

Benadryl is also used to treat motion sickness, and as a drug to treat parkinsonism.

Benadryl Dosage

Like any other drugs, the Benadryl dosage will depend on the age of the person using the drug. For the oral Benadryl, you need to be specific and careful of how much you take to avoid overdose. Children from 6 to 12 years old can already take the Benadryl dosage of 25mg every six hours or as prescribed by your doctor. For adults, you can take the up to 50mg of Benadryl every four hours or as prescribed by your doctor.

Benadryl Side Effects

benadryl dosage

The side effects of drug can also depend on the dosage you take. Some people experience a certain degree of drowsiness when they take the oral Benadryl. This side effect is normal among many anti-allergy drugs and medicines because that is the natural effect of antihistamines.

Other more serious Benadryl side effects include headache, fatigue, dizziness, and drying of the mouth. the good thing about the Benadryl side effects is that these symptoms present themselves when you take a large Benadryl dosage that is above the prescribed amount by your doctor.

Taking Benadryl dosage above the limit prescribed can cause hallucinations, sedation, and hypotension, especially among elderly patients.

Benadryl Dosage Contraindications

The use of Benadryl dosage in any amount is strongly discouraged for patients who are very young, especially premature infants. It is also discouraged to use the drug for mothers who are nursing or breastfeeding. There is a very high risk of Benadryl use for infants in general.

Moreover, using large amounts of Benadryl dosage may cause hallucinations, convulsions, and even death for pediatric patients.

The use of Benadryl for adults especially in large dosage may cause diminished alertness. This is also true for pediatric patients.

Benadryl Adverse Reactions

While the use of Benadryl dosage is safe for most people, there are still some people who register adverse reactions to the drug. The anti histamines have central effect on the nervous system, which causes sedation, disturbed coordination, dizziness, and sleepiness.

For the respiratory system, the adverse reactions that are most frequent among some users include thickening of the phlegm.

Benadryl Precautions


There are also a number of precautions before you use Benadryl. Among the general precautions, a patient should know that the drug has an atropine-like effect on people, and must be used with caution for people with a history of bronchial asthma and other cardiovascular diseases like hypertension.

Benadryl dosage instruction chart

benadryl dosage

Patients must also be advised that taking the Benadryl dosage at any amount can cause sleepiness, drowsiness and dizziness. Do not take the medicine when you are going to drive. It should be noted that people who will be engaging in activities that require full mental alertness are discouraged from taking the Benadryl.

For safety and precaution, always follow the Benadryl dosage prescribed by your physician. The drug must always be given in accordance to the specific needs of every patient. Do not assume the needs of an individual based on your own experience with the drug in the past. Different people may have different reactions to the drug, especially when they have a history of asthma and other cardiovascular diseases.

Benadryl Topical Application

If you have itching or rashes, you can consider using the topical Benadryl for your skin. They are available in creams, lotions, and sprays. To use the topical product, apply a small amount on the affected area of your skin, and let it sit for a while. This will relieve most of the itching.

It is not advised to use the topical Benadryl for children below 2 years of age. Use the topical Benadryl on the affected area of the Body only. They contain antihistamine that are absorbed through the skin. There is no prescribed Benadryl dosage for the topical cream and lotion. Just apply the product on affected areas as needed. If symptoms persist, consult your doctor.

Drug Interactions

Benadryl has additive effects when it is used with alcohol and other depressants like tranquilizers, hypnotics, and sedatives. Moreover, MAO inhibitors will also intensify and prolong the drying effects of the Benadryl. This is usually manifested in the dryness of the mouth and other areas of your body.

Benadryl Overdose

There are varying effects of Benadryl overdose, ranging from the depression of your nervous system, to stimulation of your nervous system. The stimulation symptoms are more likely to occur among patients who are younger, particularly babies and pediatric patients.

The symptoms of Benadryl overdose include dryness of the mouth, dilated or fixed pupils, pain in the stomach, and flushing.

When you experience Benadryl overdose, do not treat with stimulants. If hypotension occurs, you may use Vasopressors. Call your doctor immediately to have yourself looked at in case of Benadryl overdose. If the overdose involves a pediatric patient, rush the baby to the nearest hospital for treatment.

There is NO Benadryl dosage for dogs, and no cat Benadryl dosage as the drug is made for HUMAN USE ONLY. Using the drug on your pets can prove fatal. The best Benadryl dosage information will come from the updated prescription of your physician. Doctors will not give prescriptions for Benadryl dosage for animals.

Overall, Benadryl is a highly effective drug for allergies including itchiness caused by insect bites, runny nose, puffy eyes, and uncontrollable sneezing. Follow the right Benadryl dosage as prescribed by your doctor for safety. Take note of all the precautions before using the product. According to the age of the patient, it would be recommended to use the right Benadryl dosage.

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