Cydin AS Syrup

Cydin As Syrup is an antihistamine medicine that blocks the action of histamine, a substance in the body that causes allergy symptoms. It is also used to help increase appetite and support weight gain in some underweight patients. It acts on multiple pathways in the brain and body, including histamine and serotonin receptors, to relieve allergic symptoms and stimulate hunger.

Cydin As Syrup belongs to the class of first-generation antihistamines and works by blocking histamine at H1 receptors, which helps reduce symptoms such as sneezing, runny nose, itchy or watery eyes, and skin itching or hives. In addition to its antihistamine effects, it has antiserotonergic and anticholinergic activity, which contribute to its ability to alleviate certain allergic reactions and to stimulate appetite in selected patients. Together, these actions make Cydin As Syrup useful for managing allergic conditions and, in some cases, for supporting weight gain by improving appetite and reducing nausea-related food aversion.

This medicine should be taken only under medical supervision. Your doctor will decide the right dose and duration depending on your age, condition, and any other medicines or health problems you may have. It is usually taken by mouth, often once or twice daily, as directed. The onset of symptom relief may be within a few hours, while appetite-stimulating effects may become noticeable after several days to weeks of regular use. Extra care is needed if you have glaucoma, an enlarged prostate, urinary problems, liver or kidney disease, or mental health conditions, because Cydin As Syrup can increase sedation, dryness, and difficulty passing urine.

Although Cydin As Syrup does not cure allergies or chronic appetite problems, it can help control symptoms and improve comfort and eating behaviour in selected patients. By combining antihistamine, antiserotonergic, and anticholinergic effects, it offers a multi-targeted approach to relieving allergy-related symptoms and supporting short-term appetite stimulation when used as part of a broader medical plan.

Cydin As Syrup is typically indicated by a doctor for:

Allergic rhinitis and conjunctivitis

To help reduce sneezing, runny or stuffy nose, itchy nose or throat, and red, itchy, or watery eyes.

Allergic skin reactions and hives

To relieve itching, swelling, and redness caused by allergic skin conditions.

Appetite stimulation and weight gain

To help increase hunger and support weight gain in underweight individuals or those with poor appetite under medical supervision.

Certain allergic reactions and symptom flare-ups

To manage selected allergic reactions or histamine-mediated discomfort, as advised by a specialist.

• Cydin As Syrup may help by addressing several aspects of allergy and appetite-related symptoms, providing benefits such as:

• Helps reduce allergy symptoms such as sneezing, runny nose, itchy eyes, and skin itching, improving comfort and daily function.

• May relieve the itch and discomfort associated with hives and other allergic skin conditions.

• Supports increased appetite and improved food intake in some underweight patients, helping to reduce unintended weight loss or support catch-up growth.

• Provides relief from certain histamine- and serotonin-related discomforts when used at appropriate doses under medical guidance.

Cydin As Syrup may cause side effects, although not everyone will experience them. Most reactions are mild and temporary, but some can be more serious and require medical attention.

Common Side Effects

• Drowsiness or feeling sleepy.

• Dizziness or lightheadedness.

• Dry mouth, nose, or throat.

• Nausea or mild abdominal discomfort.

• Headache or mild fatigue.

• Constipation or mild stomach upset.

Uncommon Side Effects

• Increased appetite with possible weight gain beyond the target range.

• Blurred vision or difficulty focusing.

• Restlessness, excitement, or mild nervousness, especially in children.

• Mild changes in heart rate or blood pressure.

• Mild difficulty urinating or a feeling of incomplete bladder emptying.

Serious Side Effects

• Seek medical attention right away if you notice:

• Signs of severe allergic reaction, such as rash, hives, swelling of the face, lips, tongue, or throat, or difficulty breathing.

• Severe trouble urinating, painful urination, or inability to pass urine.

• Sudden eye pain, very blurred vision, seeing halos around lights, or signs of acute glaucoma.

• Fast or irregular heartbeat, chest pain, fainting, or severe dizziness.

• Severe confusion, hallucinations, or unusual muscle movements or stiffness.

Take Cydin As Syrup exactly as suggested by your doctor, based on your health condition, age, and other medicines or supplements you may be using. It is usually taken by mouth two or three times daily, often with meals, as this can help reduce stomach upset and support consistent dosing. Try to take the dose at the same time each day to maintain stable levels in the body and avoid missing doses. Swallow the medicine whole with water; do not crush, chew, or split it unless your doctor or pharmacist advises otherwise. Do not change the dose or frequency on your own, and never stop or restart Cydin As Syrup without medical advice.

Cydin As Syrup is an antihistamine medicine that acts through several pathways in the body and brain to relieve allergy symptoms and support appetite in selected patients. It works primarily by blocking histamine at H1 receptors, which helps reduce allergic symptoms such as sneezing, runny nose, itchy or watery eyes, and skin itching or hives. In addition, it has antiserotonergic activity, meaning it can block serotonin-related signals involved in certain allergic and vomiting-related pathways.

Cydin As Syrup also has anticholinergic effects, which can increase sedation, reduce certain types of secretions, and influence appetite-related centres in the brain. These actions together make it useful both for managing allergic conditions and, in some patients, for stimulating appetite and supporting short-term weight gain. By combining antihistamine, antiserotonergic, and anticholinergic effects, Cydin As Syrup provides a multi-targeted approach that can help relieve allergy-related discomfort and support improved eating behaviour when used under medical supervision.

• Take Cydin As Syrup exactly as prescribed, as it can cause drowsiness and the dose may need adjustment based on your response.

• Avoid alcohol and other sedating medicines unless your doctor says they are safe, because they can increase sleepiness and dizziness.

• Be careful while driving or operating machinery until you know how the medicine affects you.

• Drink enough water and use sugar-free candy or saliva substitutes if dry mouth becomes bothersome.

• Tell your doctor if you have glaucoma, difficulty passing urine, an enlarged prostate, liver disease, kidney disease, or if you are taking other allergy medicines.

• Store at room temperature in a cool, dry place away from direct sunlight. Keep the container tightly closed and out of the reach of children. Do not use the medicine after the expiry date.

Food can influence how well Cydin As Syrup is absorbed and tolerated.

• Meals (MILD): Taking Cydin As Syrup with food may reduce stomach upset.

• Alcohol (MODERATE): Alcohol can increase drowsiness and dizziness, so avoid or limit it.

• Other sedating products (CAUTION): Do not combine with other medicines that cause sleepiness unless advised by your doctor.

Cydin As Syrup may interact with other medicines, especially those that affect the brain or the urinary system.

• Other antihistamines or cold medicines (CAUTION): May increase drowsiness and dry mouth.

• Sedatives, sleeping pills, and alcohol (CAUTION): May cause excessive sleepiness.

• Anticholinergic medicines (CAUTION): May increase dry mouth, constipation, and urinary retention.

• MAO inhibitors (CONSULT YOUR DOCTOR): Can intensify side effects and should be reviewed carefully.

Certain health conditions may change how Cydin As Syrup works or is tolerated.

• Glaucoma (CAUTION): It may worsen eye pressure in susceptible patients.

• Enlarged prostate / urinary retention (CAUTION): It may make urination more difficult.

• Liver disease (CAUTION): Dose adjustment or closer monitoring may be needed.

• Kidney disease (CAUTION): Use under medical supervision.

• Mental health conditions (CAUTION): Drowsiness or confusion may be more noticeable.

Taking more than the recommended dose can increase the risk of drowsiness, agitation, confusion, dry mouth, blurred vision, fast heartbeat, and difficulty passing urine. In children, overdose may sometimes cause unusual excitement instead of sleepiness. If an overdose is suspected, seek medical help immediately.

Missed Dose of Cydin As Syrup

If you miss a dose, take it as soon as you remember. If it is almost time for the next dose, skip the missed one and continue with your regular schedule. Do not take a double dose.