This Site Might Help You. RE: Can someone get high off from Allegra-D? I have my 17 year old nephew staying with me for a few weeks now. I have noticed he takes Allegra-D for allergies he dosn& 39;t seem to have. Can you take allegra 180 mg twice daily do you have to be 18 to buy allegra 5 stars based on 190 reviews Cirrhosis has historically been considered an irreversible outcome following severe and prolonged liver damage. Will you have Substance abuse with Allegra - from FDA reports Summary Substance abuse is found among people who take Allegra, especially for people who are male, 60+ old also take medication Ambien, and have Pain. Can patients take Benadryl and Allegra together Patients can take Benadryl and Allegra together in recommendable doses if there are no contraindications. They are both antihistamines, their effects will become additive and they will reduce allergic symptoms. Yes, you can take both at the same time. I went to my doctor today about seasonal allergies and she prescribed both Singulair 24 hour and Allegra D 12 hour along with a nasal spray all to be taken together. Can Allegra D cause Addiction? Complete analysis from patient reviews and trusted online health resources, including first-hand experiences. Complete analysis from patient reviews and trusted online health resources, including first-hand experiences. Vyvanse can't be abused as far as getting an instant high by crushing the pill or crushing and snorting it, like some of the other ADHD meds can. You are not alone. We studied 51,387 people who take Allegra and have side effects from FDA. Narcotic abuse was reported. See who they are, when they have it, other medications they take and conditions have. Hi, you need to take allegra whenever there is an attack but few physician advices to take it indefinitely, discuss this with your health care provider. Chicken and alcohol, you can have it only if you are not allergic to these. If there is a development of allergy anytime after the intake, then discontinue it. Remember prevention is best cure. Take care and regards. When you are taking Allegra with antacids, take the antacids at least two hours before or two hours after taking the Allegra. Fruit Juices Taking Allegra with fruit juice can decrease the amount of Allegra absorbed into your body, possibly making it less effective.