Tyuen D Syp belongs to the class of medications called 'cough and cold preparations' primarily used to treat dry cough. In addition to this, it also helps to treat allergic symptoms like runny nose, watery eyes, sneezing, throat irritation. Cough is a reflex action that helps to clear any foreign irritant or mucus in the throat. Mostly cough lasts for a short time (two to three weeks), so it is acute. But sometimes, if it is persistent for more than eight weeks which can lead to chronic cough. Dry cough refers to cough where there is no mucus or secretion along with cough.

Tyuen D Syp is composed of four medicines, namely: Cetirizine (antihistamine/antiallergic), Phenylephrine (decongestant), Dextromethorphan (cough suppressant) and menthol (cooling/soothing agent). Cetirizine belongs to the class of antihistamines (antiallergic drugs) that works by blocking the action of histamine, a substance responsible for causing allergic reactions.  It helps relieve allergy symptoms such as sneezing, running nose, watery eyes, itching, swelling, congestion or stiffness. Phenylephrine helps in shrinking the blood vessels in the nasal passage, thereby reducing stuffy nose. Dextromethorphan works by blocking the cough receptor present in the brain, which is known to cause cough. Menthol is an additive that acts as a cooling agent that relieves minor irritation in the throat. 

Tyuen D Syp is available in liquid form (syrup). Your doctor will recommend how often you take Tyuen D Syp based on your medical condition. The dose of Tyuen D Syp should be measured with a measuring cup and not with a spoon to avoid dose fluctuations. Some people may experience an upset stomach, skin rash, flushing of the skin, drowsiness, insomnia (difficulty in sleeping), itching, loss of appetite. Everyone doesn't need to experience the above side effects.

Inform your doctor if you are pregnant, planning for pregnancy, or breastfeeding before starting Tyuen D Syp . If you have high blood pressure (hypertension),  liver or kidney disease, coronary artery disease (heart disease), avoid using Tyuen D Syp as it may worsen your existing condition and symptom. Consumption of alcohol should be avoided as it may lead to excessive drowsiness and sleepiness. Do not take Tyuen D Syp if you have taken MAO inhibitor (anti-depressant medication like Isocarboxazid, Phenelzine, Selegiline, and Tranylcypromine) in the last 14 days. Phenylephrine present in Tyuen D Syp should be used with caution in patients with occlusive vascular disease (nerve/artery blockage), including Raynaud's phenomenon (decreased blood flow to the fingers). 

Tyuen D Syp is primarily used to treat dry cough, which is composed of four medicines, namely: Cetirizine (antihistamine/antiallergic), Phenylephrine (decongestant), Dextromethorphan (cough suppressant) and menthol. Cetirizine belongs to the class of antihistamines (antiallergic drugs) that works by blocking the action of histamine, a substance responsible for causing allergic reactions.  It helps relieve allergy symptoms such as sneezing, running nose, watery eyes, itching, swelling, congestion, or stiffness. Phenylephrine helps in shrinking the blood vessels in the nasal passage, thereby reducing stuffy nose. Dextromethorphan works by blocking the cough receptor present in the brain, which is known to cause cough. Menthol is an additive that helps to relieve minor irritation in the throat and produces a cooling sensation.

• Upset stomach
• Skin rash
• Flushing of the skin
• Drowsiness
• Insomnia (difficulty in sleeping)
• Itching
• Loss of appetite

Do not take Tyuen D Syp if you are allergic to Tyuen D Syp , anti-histamine (cetirizine), a decongestant (phenylephrine), a cough suppressant (dextromethorphan), or any of its ingredients. Please inform your doctor if you are pregnant or breastfeeding before starting Tyuen D Syp . If you have high blood pressure,  kidney or liver disease, coronary artery disease, please do not take Tyuen D Syp as it is known to interact. Also, inform your doctor about all other medications you have been taking before starting Tyuen D Syp . Do not stop taking Tyuen D Syp even if you feel better without asking your doctor as your symptoms may come back and may even worsen your condition. Tyuen D Syp may cause drowsiness and sleepiness, so it is advised not to drive a car or operate machinery. Consumption of alcohol should be avoided as it may lead to excessive drowsiness and sleepiness. Do not take Tyuen D Syp if you have taken any MAO inhibitor (anti-depressant medication like Isocarboxazid, Phenelzine, Selegiline, and Tranylcypromine) in the past 14 days. Also, avoid tobacco consumption as it may worsen your condition further.

Drug-Drug Interaction: Tyuen D Syp may interact with MAO inhibitor (isocarboxazid, phenelzine, rasagiline, selegiline, tranylcypromine), anti-arrhythmic medications (amiodarone, propafenone, quinidine, and flecainide), opioid analgesics (codeine, tramadol, morphine, methadone), anti-anxiety medications (fluoxetine, paroxetine, sertraline), anti-fungal (terbinafine), blood thinners (warfarin, aspirin), anti-allergic drugs (diphenhydramine), anti-depressants (alprazolam, amitriptyline, amoxapine, clomipramine, doxepin), anticonvulsants (fosphenytoin, levetiracetam, phenytoin, valproic acid), HIV medications (lopinavir, ritonavir, saquinavir), antipsychotics (chlorpromazine, clozapine), diabetes medications (metformin, glimepiride, glipizide), and heart medications (digoxin).

Drug-Food Interaction: Avoid alcohol intake and tobacco consumption with Tyuen D Syp as it may cause increased drowsiness, dizziness, and lack of concentration.

Drug-Disease Interaction: If you have high blood pressure, kidney or liver problems, coronary artery disease, sinus (nasal congestion), diabetes, enlarged prostate, kidney or liver disease, overactive thyroid, high blood pressure (hypertension), glaucoma (increased eye pressure), are receiving monoamine oxidase inhibitor (MAO) therapy, inform your doctor before taking Tyuen D Syp .

• ISOCARBOXAZID
• PHENELZINE
• RASAGILINE
• SELEGILINE
• TRANYLCYPROMINE
• AMIDODARONE
• PROPAFENONE
• QUINIDINE
• FLECAINIDE
• CODEINE
• TRAMADOL
• MORPHINE
• METHADONE
• FLUOXETINE
• PAROXETINE
• SERTRALINE
• TERBINAFINE
• WARFARIN
• ASPIRIN
• DIPHENHYDRAMINE
• ALPRAZOLAM
• AMITRIPTYLINE
• AMOXAPINE
• CLOMIPRAMINE
• DOXEPIN
• FOSPHENYTOIN
• LEVETIRACETAM
• PHENYTOIN
• VALPROIC ACID
• LOPINAVIR
• RITONAVIR
• SAQUINAVIR
• CHLORPROMAZINE
• CLOZAPINE
• METFORMIN
• GLIMEPIRIDE
• GLIPIZIDE
• DIGOXIN

• Wash your hands with soap and water regularly to prevent the spread of germs.
• Eat plenty of foods rich in good bacteria like yogurt to improve overall health.
• Drink plenty of fluids to avoid dehydration.
• Gargle with salt water for relief from sore throat.
• Do not smoke as it might worsen your symptoms, so avoid tobacco intake.
• Avoid alcohol consumption with Tyuen D Syp as it may cause tiredness, drowsiness, or lack of concentration.

• Avoid alcohol consumption with Tyuen D Syp as it may cause tiredness, drowsiness, or lack of concentration. 
• Do not take Tyuen D Syp if you have taken an MAO inhibitor (anti-depressant medication) in the past 14 days.
• Please inform your doctor if you are pregnant or breastfeeding before starting Tyuen D Syp .
• Smoking may further worsen your condition, so avoid tobacco consumption.

Cough: It is a reflex action that helps to clear any foreign irritant or mucus in the throat. Mostly cough lasts for a short time (two to three weeks), so it is acute. But sometimes, if it is persistent for more than eight weeks which can lead to chronic cough. If the cough is accompanied by blood or barking cough, this could be serious and require medical attention. The most common causes of cough are cold/flu, asthma, emphysema, COPD (chronic obstructive pulmonary disease). Also, some medications, especially angiotensin-converting enzyme inhibitors used for hypertension, are known to cause cough.

Allergies: This is a condition that occurs when allergy-causing agents known as 'allergens' attack our body, thereby causing symptoms like redness, stuffy nose, watery eyes, excess mucus formation, airways irritation, itchy and watery nasal passage/throat. During the allergic condition, our body secretes many chemical messengers called 'histamines,' which in turn cause all these allergic symptoms. Allergies can be caused due to various chemicals, air pollutants, dust, pollen grains of plants, pet danders, hairs and various medicines.