Category Name Respiratory Care — Anti-Cold & Symptomatic Relief Combination Tablet (Analgesic + Decongestant + Antihistamine + CNS Stimulant)
Common Indications Vannim Cold Tablet is used for the symptomatic relief of common cold and flu-related complaints, including:
- Fever and body ache associated with cold and flu
- Nasal congestion and stuffiness (blocked nose)
- Runny nose and sneezing
- Watery and itchy eyes due to cold or allergic rhinitis
- Headache and sinus pain associated with cold
- Mild to moderate pain including throat pain and general body discomfort
- Daytime drowsiness management during cold (Caffeine component helps counteract sedation caused by antihistamine)
Common Dosing
- Standard Adult Dose: One tablet every 6–8 hours, or as prescribed by your doctor
- Maximum Dose: Do not exceed 4 tablets in 24 hours
- With or After Food: Recommended to minimize the risk of stomach discomfort
- Children: Not recommended for children below 12 years of age unless specifically directed by a physician
- Elderly Patients: Use with caution; elderly patients are more sensitive to antihistamine and decongestant effects. A lower dose or closer monitoring may be required
- Duration: Intended for short-term use only — typically not more than 5–7 days without medical review
Always follow your doctor's prescribed dose and duration. Do not self-medicate or exceed the recommended dose.
Common Side Effects Most side effects are mild and resolve on their own. These may include:
- Dryness in mouth, nose, and throat
- Drowsiness or sedation (despite Caffeine, Diphenhydramine may still cause sedation in some individuals)
- Dizziness or lightheadedness
- Headache
- Nausea or stomach discomfort
- Restlessness, nervousness, or difficulty sleeping (Caffeine-related)
- Increased heart rate (palpitations)
- Urinary retention or difficulty urinating
- Blurred vision
- Constipation
Seek immediate medical attention if you experience:
- Rapid or irregular heartbeat
- Severe increase in blood pressure
- Difficulty breathing or tightness in the chest
- Signs of liver stress such as yellowing of the skin or eyes, or dark-coloured urine — associated with Paracetamol overdose or overuse
- Severe allergic reaction including rash, swelling of the face or throat
Report any persistent or worsening side effects to your doctor promptly.
Common Interactions Inform your doctor or pharmacist about all medications, supplements, and herbal products you are currently taking. Notable interactions include:
- MAO Inhibitors (e.g., Phenelzine, Selegiline) — Both Phenylephrine and Diphenhydramine interact dangerously with MAO inhibitors, potentially causing severe hypertensive crisis or serotonin-like reactions. Do not use within 14 days of stopping an MAO inhibitor
- Other CNS Depressants (e.g., Benzodiazepines, Opioids, Sleeping pills, Sedatives) — Diphenhydramine significantly enhances the sedative effects of these agents, increasing the risk of excessive drowsiness and respiratory depression
- Antihypertensive Drugs — Phenylephrine may counteract blood pressure-lowering medications, potentially elevating blood pressure; close monitoring is required
- Other Sympathomimetics or Decongestants — Concurrent use with Phenylephrine may increase cardiovascular side effects such as rapid heart rate and elevated blood pressure
- Warfarin (blood thinner) — Prolonged or high-dose use of Paracetamol may increase Warfarin levels, raising the risk of bleeding; regular INR monitoring is advised
- Enzyme-Inducing Drugs (e.g., Phenytoin, Carbamazepine, Rifampicin) — May accelerate Paracetamol metabolism, increasing the formation of hepatotoxic metabolites and raising the risk of liver damage
- Other Paracetamol-containing products — Concurrent use significantly raises the risk of accidental Paracetamol overdose and liver toxicity; avoid all other Paracetamol-containing medicines during treatment
- Alcohol — Enhances the sedative effects of Diphenhydramine and increases the risk of liver toxicity with Paracetamol; strictly avoid during treatment
Special Instructions
| Condition | Guidance |
|---|---|
| 🤰 Pregnancy | Vannim Cold Tablet is not recommended during pregnancy. Phenylephrine may reduce placental blood flow, and Diphenhydramine has limited safety data in pregnancy. Paracetamol at standard doses is generally considered the safest analgesic in pregnancy, but combination cold tablets should be avoided unless specifically directed by a doctor. Consult your healthcare provider before use. |
| 🤱 Breastfeeding | This medication is not recommended during breastfeeding. Diphenhydramine may pass into breast milk, causing sedation and irritability in the nursing infant. Phenylephrine may also reduce milk production. Consult your doctor for safer individual component alternatives if needed. |
| 🍺 Alcohol | Alcohol must be strictly avoided during treatment. It significantly amplifies the sedative effects of Diphenhydramine, increasing the risk of extreme drowsiness and impaired reflexes, and raises the risk of Paracetamol-related liver toxicity even at standard doses. |
| 🚗 Driving | This tablet may cause significant drowsiness, dizziness, and blurred vision due to Diphenhydramine, even when Caffeine is present to partially offset sedation. Do not drive, operate heavy machinery, or perform any task requiring sharp mental alertness until you are certain of how this medicine affects you. |
| 🫀 Liver Disease | Use with caution or avoid in patients with liver disease. Paracetamol is extensively metabolized in the liver, and even standard doses may increase the risk of liver toxicity in those with pre-existing hepatic impairment. Regular liver function monitoring is essential if use is unavoidable. |
| 🫘 Kidney Disease | Use with caution in patients with kidney disease. Impaired renal function may affect the elimination of active components, increasing the risk of drug accumulation and side effects. Consult your doctor for appropriate dose adjustment or safer alternatives. |
Mechanism of Action Vannim Cold Tablet is a four-component combination, each ingredient targeting a specific symptom of cold and flu:
Paracetamol 500 mg (Analgesic / Antipyretic): Acts centrally in the brain to raise the pain perception threshold and reduce fever by inhibiting prostaglandin synthesis in the central nervous system. It provides reliable relief from body ache, headache, sore throat pain, and fever — the hallmark symptoms of cold and flu — with a well-established safety profile at therapeutic doses
Phenylephrine 5 mg (Nasal Decongestant): Acts as a selective alpha-1 adrenergic agonist, causing constriction of the dilated and engorged blood vessels in the nasal mucosa. This reduces nasal swelling, relieves stuffiness and congestion, and restores easier nasal airflow — providing prompt relief from blocked nose and sinus pressure
Diphenhydramine 25 mg (First-Generation Antihistamine): Blocks H1 histamine receptors, reducing the allergic and inflammatory response responsible for runny nose, sneezing, watery eyes, and nasal irritation during cold and allergic rhinitis. Its additional anticholinergic properties help dry up nasal and respiratory secretions, further reducing congestion
Caffeine 30 mg (CNS Stimulant / Analgesic Adjuvant): Acts as a mild central nervous system stimulant, helping to counteract the drowsiness and sedation caused by Diphenhydramine. It also acts as an analgesic adjuvant — enhancing the pain-relieving effect of Paracetamol by up to 40%, allowing effective pain relief at lower doses
Together, these four components provide comprehensive, multi-symptom relief — addressing fever, pain, nasal congestion, runny nose, sneezing, and sedation in a single tablet.
Instructions to Take
- Take this tablet with or after food to minimize the risk of stomach discomfort
- Swallow the tablet whole with a full glass of water — do not crush or chew
- Take at regular intervals of 6–8 hours — do not take more frequently than prescribed
- Do not exceed 4 tablets in 24 hours under any circumstances
- Avoid all other Paracetamol-containing products simultaneously (such as other cold remedies, combination pain tablets, or flu sachets) to prevent accidental overdose
- Caffeine in this tablet may cause restlessness or difficulty sleeping in sensitive individuals — avoid taking a dose close to bedtime if this occurs
- Do not use for more than 5–7 days without consulting your doctor
- If you miss a dose, take it as soon as you remember. If it is almost time for the next dose, skip the missed dose — do not double up
- Store in a cool, dry place away from direct sunlight and moisture. Keep out of reach of children
This information is intended for general reference purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before starting, changing, or stopping any medication.
