Rigix Tablet & Syrup: Uses, Side Effects, Dosage

Rigix Tablet contains 10mg of cetirizine dihydrochloride— an antihistamine used to treat different types of allergies like seasonal allergic rhinitis, perennial allergic rhinitis and chronic idiopathic urticaria.

Cetirizine is a second-generation antihistamine used over the counter to relieve allergy symptoms such as watery eyes, itching eyes/nose, runny nose, hives, sneezing, and itching.

Cetirizine works by blocking histamine that your body produces during an allergic reaction.

There is also a Rigix Syrup 120 ml solution that contains 1 mg of cetirizine dihydrochloride per one ml.

AGP manufactures Rigix Tablet and syrup, and it comes in 30 capsules box that can cost you around 202 PKR, and the syrup price is around 124 PKR.

The usual recommended dose for an adult is 1 tablet per day with a glass of water. While the usual recommended dose of Rigix Syrup for children age, less than two years is 2.5 mg (½ teaspoonful) once daily. The usual dose in children age 2-5 years age group can be increased to a maximum dose of 5 mg per day given as 1 teaspoonful (5 mg) once daily, or as ½ teaspoonful (2.5 mg), two times a day.

Rigix Tablet
Rigix Tablet

Rigix Tablet Side Effects

Rigix can cause side effects, such as:

  • Drowsiness
  • Vomiting
  • Irregular heartbeat
  • Tiredness
  • Stomach ache/pain
  • Diarrhoea
  • Dry mouth
  • Vision problem
  • Sore throat etc

The Rigix Tablet contain Cetirizine, a second-generation antihistamine, and its side effects are lower than other antihistamines. This one is less likely to cause severe drowsiness, dry mouth, blurred vision, and overheating.

Still, if you experience any unexpected side effects after taking Rigix Tablet, consult your doctor or pharmacist.

Rigix In Pregnancy & Lactation

Animal studies show that Cetirizine is safe to use and doesn’t cause any teratogenicity. However, as a precaution, Rigix shouldn’t be used in pregnant women during the first trimester of pregnancy.

Rigix Dosage

You will need to take 1 tablet of Rigix per day with a glass of water, preferably in the evening or at the time of bed. (This applies to adult only)

While the dose for children is 1/2 tablespoonful of Rigix Syrup for those ages less than 2 years and the same for age less than 5 years, you can increase it to 1 spoonful per day.

In case of overdosage, there is no antidote, but you will only experience sedation. Consult your doctor or pharmacist.

Rigix Syrup
Rigix Syrup


Rigix can cause side effects that may affect your thinking or reactions. Use caution when driving or doing anything that requires you to be awake and vigilant.

Let your doctor know if you regularly take other medications that make you sleepy (such as cold or allergy medication, pain relievers, sleeping pills, muscle relaxants and seizures, depression or anxiety).

Avoid drinking alcohol because t can increase some of the side effects of Cetirizine.

Avoid it if you are allergic to Cetirizine or any other ingredients present in the Rigix.

Consult your doctor if you are a pregnant woman or planning to become pregnant. The same applies to lactating women because this medicine can cross into the milk.

What Happens if you miss the dose of Rigix?

Take the missed dose of Rigix as soon as you remembered and if it’s time for the next dose, skip the missed dose and continue with the old schedule.

What Happens If I Overdosed Rigix?

In most cases, it may not cause some side effects like sedation and feel restless or nervous, and then feeling drowsy.

How does It work?

Cetirizine present in the Rigix tablet selectively blocks the peripheral histamine H1-receptor.

Due to its blocking of histamine H1 receptors, Cetirizine effectively reverses many of the effects of histamine. Like second-generation antihistamines, Cetirizine decreases vascular permeability, reducing the amount of fluid that escapes from the capillaries into tissues. Cetirizine also prevents histamine-induced bronchospasm.

Cetirizine has been shown to have significant inflammatory activity, reducing inflammatory cells’ infiltration in allergic rhinitis. In particular, research has shown that this medicine reduces the transfer of neutrophils and eosinophils.

Can you drink while on Cetirizine (Rigix)?

Cetirizine and alcohol can both cause drowsiness and sleepiness. These side effects may worsen if you take both at the same time. If possible, try to avoid or lower alcohol consumption while taking Cetirizine.

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