Okacet Tablet: Uses, Dosage, Side Effects, and More

Okacet is a commonly recognized brand name for a drug that contains the active ingredient cetirizine 10 mg. 

Cetirizine, an antihistamine, is often prescribed or available over the counter to relieve the symptoms of various allergic reactions. 

In this article, we will discuss the usage, recommended dosage, possible side effects and essential information about Okacet tablets.

Understanding Okacet Tablets

Okacet tablets are formulated to relieve allergic reactions by primarily attacking histamine, a natural substance produced by the body during allergic reactions. 

okacet tablet uses

Histamine triggers symptoms such as sneezing, runny or itchy nose, itchy or watery eyes, and itchy throat or nose. 

Cetirizine, the active ingredient in Okacet, blocks the effects of histamine, thereby alleviating these allergic symptoms.

Common Uses of Okacet Tablets

Allergic Rhinitis – Okacet is usually used to relieve the symptoms of allergic rhinitis. 

This condition is characterized by nasal congestion, sneezing, itching, and a runny nose. 

These symptoms often develop following exposure to allergens such as pollen, dust mites or pet dander.

Chronic Urticaria – Chronic idiopathic urticaria, characterized by chronic hives and itching, can also be treated with Okacet tablets. 

This condition manifests itself as itchy marks on the skin that may appear and disappear for no apparent reason. 

Cetirizine helps control the itching and hives associated with this condition.

Allergic Skin Conditions – Okacet tablets may be prescribed to people suffering from itching and hives caused by allergic skin diseases such as atopic dermatitis or contact dermatitis. 

These illnesses often result from direct skin contact with irritants or allergens.

Pruritus (Itching) – Itching, whether due to insect bites, chickenpox or other skin irritations, can be relieved by taking Okacet tablets. 

The antihistamine properties of cetirizine help relieve the discomfort and itching associated with these conditions.

Eczema – In some cases, cetirizine may be recommended to control itching and discomfort in people with eczema, a chronic skin condition characterized by itchy, inflamed patches of skin.

Dosage and Administration of Okacet Tablet

The dosage of Okacet tablets may vary depending on the condition being treated, the age of the patient and individual factors. 

It is important to adhere to the recommended dosage, as exceeding the recommended dose may result in an increased risk of side effects, while taking too little may result in inadequate symptom relief.

Allergic Rhinitis

Adults and children over 12 years of age: Typically, for the treatment of allergic rhinitis (hay fever) in adults and adolescents, the recommended dosage is 5-10 milligrams (mg) taken once daily. This dose can effectively alleviate symptoms such as sneezing, runny or itchy nose, itchy or watery eyes, and throat or nose itching.

Children 6-12 years of age: For children in this age group, a reduced dosage of 5 mg once daily is usually recommended. It’s essential to consider the child’s age and weight when determining the appropriate dose.

Chronic Urticaria

The recommended dosage of Okacet tablets for the treatment of chronic idiopathic urticaria (persistent hives and itching) is the same as that for allergic rhinitis. Adults and adolescents typically take 5-10 mg once daily, while children aged 6-12 years may take 5 mg once daily.

Allergic Skin Conditions

When addressing allergic skin conditions like atopic dermatitis or contact dermatitis, the dosage is generally the same as for allergic rhinitis or urticaria. Again, it’s vital to consider the patient’s age and weight, especially when treating children.

Pruritus (Itching)

If Okacet tablets are prescribed to alleviate itching due to various skin irritations or conditions such as insect bites, chickenpox, or other causes, the typical dosage remains the same, with consideration for the patient’s age and weight.


For individuals with eczema experiencing itching and discomfort, the recommended dosage is typically in line with that for allergic rhinitis. Adult and adolescent patients are often instructed to take 5-10 mg once daily, and children aged 6-12 years usually take 5 mg once daily.

Possible Side Effects of Okacet Tablet

While Okacet (cetirizine 10 mg) is generally well-tolerated, it may have some side effects. Common side effects may include:

Drowsiness (though cetirizine is considered less sedating than some other antihistamines)

Dry mouth



Stomach pain

Serious side effects are rare, but may include symptoms of an allergic reaction, such as rash, itching, swelling, severe dizziness, or difficulty breathing. 

If any of these serious side effects occur, seek medical attention immediately.

Precautions and Warnings

Before starting treatment with Okacet, it is very important to tell your doctor about any pre-existing medical conditions or other medicines you are taking.

Avoid drinking alcohol while taking Okacet. This may increase your risk of certain side effects, such as drowsiness. 

Okacet may cause drowsiness in some people. Be careful when operating heavy machinery or performing tasks that require alertness until you know how the drug affects you. 

If you are pregnant or breastfeeding, please consult your doctor before using Okacet, as safety during pregnancy and breastfeeding may need to be assessed.

The Mode of Action of Okacet Tablet

Cetirizine, the active ingredient in Okacet Tablet, is classified as a second-generation antihistamine. 

It is very effective in relieving allergy symptoms, and the risk of sedation is significantly reduced compared to first-generation antihistamines. 

Okacet neutralizes the effects of histamine.

Histamine Receptor Blockade – Cetirizine exerts its main action by binding and blocking H1 receptors on target cells. 

H1 receptors are the sites on the surface of cells where histamine binds to trigger its allergic response. 

By occupying these receptors, cetirizine prevents histamine from binding to them.

Inhibition of Inflammatory Pathways – In addition to simply blocking H1 receptors, cetirizine also inhibits the activation of certain inflammatory pathways caused by histamine binding. 

This further dampens the immune response leading to symptoms such as itching, sneezing and nasal congestion.

Reduced Vascular Permeability – One of the hallmarks of histamine action is an increase in vascular permeability. 

This causes fluid to leak from the blood vessels, which contributes to swelling and itching. 

Cetirizine helps alleviate this effect by reducing vascular permeability, which in turn relieves these allergic symptoms.

Minimized Mucus Production – Histamine can stimulate mucus production in the airways, which can lead to a runny nose or blocked nose and throat. 

Cetirizine helps reduce mucus production and helps relieve symptoms.

Alleviation of Skin Symptoms – For allergic skin conditions such as hives and itching, cetirizine helps reduce itching and redness of the skin by acting on both H1 receptors and inhibiting inflammatory reactions in the skin.

Onset of Action and Duration of Okacet Tablet

Okacet tablets tend to have a relatively rapid onset of action, and many people feel relief around 20 to 60 minutes after taking them. 

The effect usually lasts 24 hours, which is why it is usually taken once a day.

Drug Interactions with Okacet Tablet

Central Nervous System Depressants – An important category of drugs that may interact with Okacet includes central nervous system depressants such as sedatives, tranquilizers, and some sleep medications. 

These drugs may increase drowsiness, which may be a side effect of Okacet. 

It is important to use caution when combining Okacet with these medications and follow your doctor’s recommendations.

Alcohol – Drinking alcohol while taking Okacet may also increase the risk of drowsiness and impairment. 

Combining alcohol with Okacet is not recommended as it may affect your ability to drive or operate heavy machinery.

Other Antihistamines – Simultaneous use of multiple antihistamines may lead to an increased risk of side effects and reduced effectiveness. 

If you have been prescribed or are taking other antihistamines, consult your doctor before combining them with Okacet.

Drugs that Cause Drowsiness – Drugs that cause drowsiness, such as opioids, some antidepressants, and muscle relaxants, may interact with Okacet and increase its sedative effects. 

It is important to tell your doctor about all the medications you are taking to ensure there are no potentially dangerous interactions.

Drugs Metabolized by Cytochrome P450 Enzymes – Certain drugs are metabolized in the liver by specific enzymes, including those of the cytochrome P450 family. 

Cetirizine (the active ingredient in Okacet) is primarily metabolized by these enzymes. 

Medicines that inhibit or induce these enzymes may affect the blood levels and effectiveness of Okacet and other medicines. 

It is important to tell your doctor about all the medications you are taking to avoid possible interactions.


Okacet tablets containing cetirizine are a valuable aid in the treatment of a number of allergic reactions. 

They are often used to relieve symptoms of allergic rhinitis, chronic hives, and various allergic skin diseases. 

As with any medication, it is important to use Okacet as directed by a doctor or as indicated on the product label. 

Although side effects are usually mild, it is important to be aware of them and seek medical attention if reactions are severe. 

Always consult a doctor for individual advice and recommendations on the use of Okacet tablets.


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