Why does Reactine make me drowsy?

Why does Reactine make me drowsy?

The first-generation antihistamines can make you drowsy because they cross the blood-brain barrier, an intricate system of cells that regulates what substances pass into the brain.

Is Reactine drowsy or non drowsy?

Reactine – Allergy Extra Strength Non Drowsy – 10mg, 30 Each Cetirizine hydrochloride. Relieves sneezing, stuffiness, itchy, watery eyes, hives, runny nose, itchy nose and throat, nasal congestion and allergic skin itch.

Can you get non drowsy Reactine?

Reactine Allergy Extra Strength Non Drowsy Relief that lasts a full 24 hours, all day and all night. Relief from all your toughest allergy symptoms including Itchy, watery eyes, sneezing, runny nose and Itchy throat.

Does Reactine rapid dissolve make you drowsy?

headache, sleepiness and dry mouth may occur.

Is Reactine drowsy?

Drowsiness/reduced alertness: Studies have shown that the cetirizine ingredient of this medication does not cause drowsiness under normal circumstances. A small percentage of people taking this medication have experienced a degree of drowsiness.

Why do antihistamines make you drowsy?

Antihistamines, mainly used to treat symptoms of hay fever or other allergies, can induce drowsiness by working against a chemical produced by the central nervous system (histamine). These medications can be useful in certain situations, such as for treating sleeplessness related to travel.

Do cetirizine make you drowsy?

Cetirizine is classed as a non-drowsy antihistamine, but some people still find it makes them feel quite sleepy. Common side effects include headaches, dry mouth, feeling sick, dizziness and diarrhoea.

Does cetirizine cause drowsiness?

The most common side effect of cetirizine is feeling sleepy and tired. This happens in more than 1 in 10 people. Talk to your doctor or pharmacist if this side effect bothers you or does not go away. Other common side effects of cetirizine happen in more than 1 in 100 people.

Can I take 20mg of Reactine?

REACTINE® 20 mg Tablet is recommended only if lower doses (non- prescription) of cetirizine hydrochloride do not provide sufficient response for patients 12 years of age and older. The recommended dose is one 20 mg tablet once daily, with or without food. The maximum recommended daily dose is 20 mg.

Are drowsy antihistamines better?

Non-drowsy antihistamines are generally the best option, as they’re less likely to make you feel sleepy. But types that make you feel sleepy may be better if your symptoms stop you sleeping.

Are all antihistamines drowsy?

While some over-the-counter antihistamines can cause drowsiness, routinely using them to treat insomnia isn’t recommended. Antihistamines, mainly used to treat symptoms of hay fever or other allergies, can induce drowsiness by working against a chemical produced by the central nervous system (histamine).

Which antihistamine is drowsy?

Chlorphenamine is known as a drowsy antihistamine because it can make you feel sleepy. Non-drowsy antihistamines are less likely to have this effect. These include cetirizine, fexofenadine and loratadine.

What is Reactine 20mg used for?

REACTINE® 20 mg Tablet (cetirizine hydrochloride) is indicated for the fast relief of nasal and non-nasal symptoms associated with seasonal and perennial allergic rhinitis (i.e. sneezing, rhinorrhea, post-nasal discharge, nasal congestion/stuffiness, tearing and redness of the eyes, itchy nose/throat) and chronic …

What does non-drowsy mean?

What it means: “Non-drowsy” is code for antihistamines and other medications that don’t make you sleepy. They’re a good choice for allergy relief during daytime hours.

Is it okay to take 20mg of Reactine?

What is the difference between drowsy and non-drowsy antihistamines?

antihistamines that make you feel sleepy – such as chlorphenamine (Piriton), cinnarizine, diphenhydramine, hydroxyzine and promethazine. non-drowsy antihistamines that are less likely to make you feel sleepy – such as acrivastine, cetirizine, fexofenadine and loratadine.