Below are examples of these side effects. Benadryl products that are topical (applied to the skin) are approved for decreasing pain and itchy skin due to hives, insect bites, and other causes.Allegra is approved for decreasing symptoms of hay fever and other respiratory allergies, and itchy skin caused by hives, insect bites, and other causes.Benadryl is available in many different forms, including:Oral Benadryl products are usually taken every 4 to 6 hours. Usage of the drugs must be strictly followed according to the dosage as prescribed by the doctor.Benadryl can be taken orally in the form of capsules, tablets, or liquid with or without food. Excessive humidity should be avoided.© 2004-2020 Healthline Media UK Ltd, Brighton, UK, a Red Ventures Company. Some are oral (taken by mouth), and some are topical (applied to the skin). There are several other antihistamines that can be used as alternatives.Antihistamines are typically classified as either first generation or second generation.The first-generation antihistamines usually cause more sleepiness and other side effects than the second-generation antihistamines. I have had congestion...almost the entire time I've been at school, hence my taking it! They may recommend other treatment options.Zoloft (sertraline) is an antidepressant that can cause sleepiness in some people who take it. Benadryl antiemetic effects are likely due to central anticholinergic effects. They both are available in generic forms.These drugs are not recommended for treating cough-or-cold symptoms. If anything, it usually causes drowsiness. need relief in the morning. Claritin has a long-lasting effect of 24 hours per dose and thus, it must be taken in the morning and Benadryl’s effect lasts for a short period of time and also has sedative properties, which is why it should be taken at night so that it helps the patient to fall asleep faster.There are several side effects of taking Benadryl and Claritin together. Your doctor may want to evaluate your symptoms to determine the safest treatment.Taking Benadryl occasionally during breastfeeding is likely safe. Other medications are considered a first-choice treatment for people who need to relieve motion sickness but want to stay awake while traveling.If you get symptoms of motion sickness, talk with your doctor about treatment options before you travel.Some topical, over-the-counter Benadryl products are approved for treating pain and itchy skin caused by insect bites and stings. Not all of these uses are recommended by the FDA or by medical experts.Benadryl is an approved over-the-counter treatment of symptoms of hay fever and other respiratory allergies such as:Benadryl is effective for reducing symptoms of allergies. There was a problem adding your email However, taking Benadryl regularly or in large doses may cause side effects in a child who is breastfed. Examples of these conditions include:Each Benadryl package is given an expiration date by the manufacturer of the product. Well I'm pretty congested right now, and I have Benadryl D in my room. MNT is the registered trade mark of Healthline Media. For treatment of severe allergic reactions during pregnancy, injected diphenhydramine is often considered the first-choice treatment. If you have trouble swallowing whole tablets, Benadryl liquid solution and chewable tablets are available.Benadryl is an antihistamine. These medications include:Note: In rare cases, swelling from hives may cause a swollen tongue or throat and cause trouble breathing. Store brands are usually cheaper than the brand-name versions.Benadryl contains the ingredient diphenhydramine, a first-generation antihistamine.Melatonin is a hormone that naturally occurs in the body. I took the Zyrtec last night around 7, would taking a Benadryl now be okay? In most cases, it is not recommended to take these drugs together but there are exceptions as well.Benadryl and Claritin are antihistamines that are useful for treating allergic symptoms like watery eyes, runny nose, itching, and sneezing caused by hay fever or other allergies like allergies to dust mites and more.Benadryl (diphenhydramine) is also effective in treating insomnia, hives, motion sickness, and mild symptoms of Parkinson’s disease.Claritin (loratadine) is used to treat allergies as well. The chewable tablets can be chewed, followed by swallowing it. 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