Can I give my child antihistamines?
Guide d'interaction médicamenteuse
Publié à l'origine 30 Apr 2026
Respecte les directives éditoriales
- TéléchargerTélécharger
- Partager
- Language
- Discussion
- Version audio
Antihistamines can affect children differently than adults. While they usually cause sleepiness, they can sometimes cause 'paradoxical excitation,' making a child hyperactive, shaky, or unable to sleep. In very young children (under 6), some older antihistamines can cause serious breathing problems or severe drowsiness.
Dans cet article:
Video picks for Interactions médicamenteuses
Continuez à lire ci-dessous
Pourquoi cela se produit
Children's brains and bodies are still developing. Their metabolism processes drugs at different speeds, and their central nervous system is more sensitive to the effects of these medicines, which can lead to unpredictable reactions.
Ce que vous devriez faire
Retour au sommaireAlways check the packaging or speak to a pharmacist to ensure the medicine is age-appropriate. For children under 6, do not give over-the-counter antihistamines for coughs and colds without a doctor's advice. Stick strictly to the recommended dose for the child's age and weight, and never use two different antihistamines at the same time (such as a hay fever syrup and an itch cream).
Continuez à lire ci-dessous
Précautions importantes
Retour au sommaireChildren under 2 years old
Sedating antihistamines must not be given to children under 2 years old as they can cause life-threatening breathing difficulties (respiratory depression).
Drowsiness and hyperactivity
While these medicines usually cause drowsiness, they can sometimes cause 'paradoxical excitation' in children, making them unusually hyperactive, agitated, or unable to sleep.
Avertissements sur la nourriture et les boissons
Retour au sommaireFruit Juices (Grapefruit, Orange, Apple)
Do not drink grapefruit, orange, or apple juice while taking fexofenadine. These juices can significantly reduce the amount of medicine absorbed by your body, making it less effective at treating your symptoms. Wait at least 2 hours after taking the medicine before drinking these juices.
More about Fexofenadine (Allegra/Telfast)
Repas riches en graisses
Taking fexofenadine with a meal that is very high in fat can reduce how much of the medicine your body absorbs. It is best to take this medicine on an empty stomach or with a light snack.
Utilisation d'autres médicaments
Taking multiple medicines? Our Vérificateur d'Interactions Médicamenteuses helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Patient picks for Interactions médicamenteuses

Vérificateur d'interactions médicamenteuses
Can I take antihistamines with asthma?
While antihistamines are generally safe for people with asthma, older 'sedating' antihistamines (like chlorphenamine) can occasionally make asthma symptoms harder to manage by drying out the airways. Additionally, some people with asthma may have a higher risk of allergic reactions to certain ingredients in liquid medications.

Vérificateur d'interactions médicamenteuses
Can I take antihistamines with alcohol?
Combining alcohol with antihistamines can make you feel extremely drowsy, dizzy, and unsteady on your feet. It can also slow down your breathing and significantly impair your coordination and judgement. This effect is much stronger with older 'sedating' antihistamines (like chlorphenamine or promethazine), but it can also happen with newer 'non-drowsy' versions (like cetirizine or loratadine).
Continuez à lire ci-dessous
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
30 Apr 2026 | Publié à l'origine

Demandez, partagez, connectez-vous.
Parcourez les discussions, posez des questions et partagez vos expériences sur des centaines de sujets de santé.

Vous ne vous sentez pas bien ?
Évaluez vos symptômes en ligne gratuitement
Inscrivez-vous à la newsletter Patient
Votre dose hebdomadaire de conseils de santé clairs et fiables - rédigés pour vous aider à vous sentir informé, confiant et maître de la situation.
By subscribing you accept our Politique de confidentialité. Vous pouvez vous désabonner à tout moment. Nous ne vendons jamais vos données.