WELBIHIST DX SUGAR FREE Syrup 100ml

Bilastine

Bilastine 20mg Tablet

Bilastine is a potent and long-acting peripherally selective H1-receptor antagonist. It belongs to the second generation of antihistamines and is specially formulated for rapid relief of allergy symptoms, such as allergic rhino-conjunctivitis and urticaria (hives). Unlike traditional antihistamines, the drug reaches the brain minimally to give relief to the patient without inducing daytime drowsiness.

Indications

Allergic Rhinitis: This medicine best relieves sneezing, itching, and runny or blocked nose caused by seasonal (hay fever) or perennial allergic rhinitis.

Allergic Conjunctivitis: This medicine alleviates the congestion, itchy redness, and watery discharge of eyes.

Urticaria (Hives): It treats cutaneous rashes, wheals, and pruritic spots blitzing chronic idiopathic urticaria.

Dust & Pollen Allergy: This 24-hour therapy targets the environmental exposures that could threaten your calm life.

Main Benefits

Non-Sedating Formula: It does not affect the central nervous system and enables you to keep awake during your daily work or driving.

Quick Onset: Onset of action is seen in 30–60 minutes.

Time of Once-Daily Dosing: A 20mg dosage is to be taken once a day for 24-hour relief.

High Safety Profile: Safe to use; usually does not cause anticholinergic side-effects (like dry mouth) as older antihistamines do.

Dosage & Administration

General Dose: For adults and children aged more than 12 years, a regular 20mg dose is taken once in a day.

One-Hour Rule: Bilastine must be taken on an empty stomach. It should be taken one hour before or 2 hours after food or fruit juice to preserve the therapeutic adequacy.

Method: Swallow the tablet whole with water.

Adverse Effects

While most people do not experience adverse effects, some mild symptoms may be seen:

Intermittent headache or dizziness

Mild stomach discomfort

Fatigue (rarely)

Warning: Seek immediate emergency help if you exhibit any signs of very rare allergic reactions, such as swelling of the face, lips, or tongue, or difficulty in breathing.

Precautions & Interactions

Interaction with Food & Juice: Do not combine this medicine with grapefruit juice or any other fruit juices because they seriously dampen the intake of Bilastine.

Kidney Health: Patients with moderate to severe renal function should be seen by their doctor as Bilastine may require dose adjustments or special monitoring.

Use of Alcohol: While Bilastine does not significantly magnify the effects of alcohol, it is best not to consume alcohol while taking this drug.

Pregnancy: Talk to your healthcare provider before taking this drug if you are pregnant, planning to conceive, or breastfeed.

Frequently Asked Questions (FAQs)

Q: How does Bilastine compare to other antihistamines like Cetirizine or Levocetirizine?
Considering all are effective antihistamines, Bilastine has the least rate of causing sedation while compared to the others in the group, and therefore is preferred by many patients during the day compared to Cetirizine.

Q: Why do I have to take it on an empty stomach?
Food, especially fatty meals and fruit juices, significantly reduces the bioavailability of Bilastine up to 30%. Thus, it essentially ensures that the greatest possible absorption of Bilastine is possible.

Q: Can Bilastine be taken for the common cold?
Antihistamines like Bilastine are mainly used in cases of generalized allergies. If they have a runny nose from an allergic symptom, then their effect on virus-related common cold symptoms is minimal.

Q: For how long can I take Bilastine?
The duration of treatment depends on the intensity of your symptoms. For seasonal affectation, you would take the drug during the period of maximal exposure; for ongoing conditions like urticaria; you may be advised to take it for longer. Always stay updated regarding the advice provided by your qualified practitioner.

Q: Does taking this make me gain weight?
There is no evidence linking Bilastine to any weight gain, which is common with some older antihistamines.

Dextromethorphan Hydrochloride

DEXTROMETHORPHAN HYDROCHLORIDE

Overview

Dextromethorphan hydrochloride is a commonly used medicine that helps reduce coughing. It's found in many over-the-counter cold and flu remedies. While it doesn’t treat the root cause of cough (like an infection), it helps give relief by quieting the urge to cough, especially when the cough is dry or irritating.
Classification
Cough Suppressant (Antitussive)
Uses
Eases dry or non-productive coughs

Provides temporary relief from throat irritation due to coughing

Often included in cold, flu, or allergy medications
How It Works
Dextromethorphan works by acting on the brain’s cough center—specifically, it affects signals in the part of the brain that triggers coughing. This helps reduce the frequency and intensity of coughs, allowing better rest and less throat discomfort.

Dosage
As prescribed by your doctor.

Side effects
Some people may experience:
Drowsiness or dizziness

Nausea or stomach upset

Mild confusion or lightheadedness (with high doses or sensitivity)

Less commonly:
Allergic reactions such as rash or itching

Nervousness or restlessness

Changes in mood or behavior (especially if misused)
Precautions
Not recommended for persistent or chronic coughs (like those linked to asthma, smoking, or long-term lung issues) unless advised by a doctor

Should be used carefully in children (especially under 6), older adults, or those with liver problems

Avoid alcohol and other sedatives while using it, as they can increase drowsiness

Should not be combined with certain antidepressants (MAO inhibitors) due to risk of serious interactions

Always follow dosage instructions and check with a healthcare provider before combining with other medications.

Disclaimer
This content is for informational purposes only. Always consult a healthcare provider for medical advice and proper dosage

Phenylephrine

Phenylephrine is a powerful sympathomimetic agent used primarily as a nasal decongestant. Phenylephrine works by targeting alpha-adrenergic receptors in the blood vessels of the nasal passages, causing them to constrict. This action reduces swelling and mucus build-up, making it easier to breathe. Phenylephrine is an ingredient found in many OTC/prescription multi-symptom cold and flu remedies and is usually coupled with paracetamol or antihistamines.

Therapeutic uses
Nasal Congestion: Temporary relief from a “stuffy nose,” caused by common cold, hay fever, or other upper respiratory allergies.
Sinus Pressure: Relief of fullness and pressure in the sinuses.
Allergy Symptoms: Aid in managing the nasal symptoms with seasonal allergy support.
Low blood pressure (hypotension) support: Used in clinical settings and given via injections to keep blood pressure in check during specific medical procedures.

Pages resulting in Phenylephrine therapy

Selectivity in Binding & Mechanism of Action
Phenylephrine's effects on various $\alpha_1$-adrenergic receptors make this particular molecule a highly reliable for causing vasoconstriction when these receptors are activated in the vascular smooth muscle in the nasal mucosa which results in a reduction in the volume of the nasal membranes and lower the flow of fluids, thereby providing the widest opening for air to pass way.

Dosage & Administration

Oral Tablets Dosage
Repetitive dosages via a 3-hour interval are usually administered. A maximum of 6 divided doses might be occasionally required in 24 hours.

Nasal Sprays/Drops Dosage
Spray or drip as prescribed into each side of the nostril. The nasal form should not be used for more than three consecutive days to prevent “rebound congestion.”

With Food
May be taken on an empty stomach or with food. Taking with food may alleviation stomach problems, though it is primarily safe without food if it doesn’t show any adverse side effects.

Provoked Adverse Effects of the Chemical
Productivity in terms of treating symptoms of nasal congestion, although phenylephrine can bring about:
Drowsiness can begin after a long period of insomnia initiation.
High palpitational activities
Insufficient movement (slipping or falling)
Dizziness
Headache

Interactions

Advisor: Immediately report such rare occurrences, especially when there is lightheadedness, fainting, or a swift, irregular heart rate.

Precautions & Warnings
Hypertension: It should not be administered to those already suffering from markedly high blood pressure due to potential significant rise in blood pressure, yet if it is essential, such usage must be closely monitored.
Heart disease: Management of heart disorders supports the avoidance of oral phenylephrine use in patients with coronary artery disease. Phenoxybenzamine may hardly be used in those with CVD (coronary vascular disease).
Endocrine: Sympathomimetic agent influences the heart rate and glycemia; careful care will be required for patients with hyperthyroidism and diabetes.
MAOIs: VERY IMPORTANT: Phenylephrine must not be prescribed with MAOI in the prior 14 days. Such combinations may result in a hypertensive crisis.

Frequently Asked Questions (FAQs)

Q: Do you think Phenylephrine causes sleepiness?
Phenylephrine is a stimulant compared to most of the antihistamines that are largely used in medications for colds. This is why it does not make most people tired, but rather alert or even anxious.

Q: Can I mix Phenylephrine with hypertensive medication?
You need to consult with your cardiologist. It squeezes the blood vessels, unexpectedly counteracting the hypertensive reaction of antihypertensive drugs.

Q: Is Phenylephrine just right for a runny nose?
Phenylephrine is mainly used as a decongestant and works on a blocked nose. If you’re experiencing a runny nose or sneezing as your primary symptoms, taking an antihistamine might be better.

Q: Why should nasal sprays with phenylephrine only be used for 3 days?
When nasal decongestants are used extensively, they can give rise to "rhinitis medicamentosa," and the nasal passageways become permanently swollen and dependent on the medication to remain open.

Q: Can phenylephrine be given to children?
Dosage for children is very much dependent on age and weight. When dealing with a child, never ever give adult strength in phenylephrine. Be sure to only use the pediatric preparation according to the prescribing doctor.