Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen
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Molecule Summary
| Uses | Fever with cold |
| Therapy | Cough Cold Preparation |
| Side Effects | Nausea, vomiting, drowsiness, dizziness, fatigue |
Medicines
available
19k pincodes
Molecule Description
Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen is a cold and flu medicine. It helps relieve symptoms such as a runny or stuffy nose, common cold, sneezing, body aches, headache, dry cough, and fever. The medicine contains a combination of diphenhydramine, phenylephrine, caffeine, and paracetamol.
It acts by blocking the action of the chemical substance histamine. It constricts the nasal blood vessels, thus aiding in clearing the nasal passage and inhibiting the chemical substance involved in pain and fever.
Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen should not be used in children below 12. Inform the doctor if you are on other medications or have medical conditions. Do not consume more than what is suggested by the doctor. Inform your doctor if you are breastfeeding a baby, intend to get pregnant, or are already pregnant.
Uses
Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen is used for the treatment of cold, flu, cough and fever.
Contraindications
When should one not use Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen
- If you are allergic to paracetamol, phenylephrine, diphenhydramine, caffeine or any other Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen ingredients.
- If you have a stomach ulcer or obstruction of the stomach and intestine.
- If you have a non-cancerous tumour of the adrenal gland (pheochromocytoma).
- If you have eye conditions such as glaucoma.
- If you have severe liver or kidney disease, high blood pressure, hyperthyroid (overactive thyroid), diabetes and heart disease.
- If you are on tricyclic antidepressant medicines such as imipramine, amitriptyline, doxepin, desipramine or beta-blockers (drugs used in high blood pressure) such as metoprolol, propranolol, atenolol.
- If you are or were on Monoamine oxidase inhibitors (MAOIs) such as selegiline, isocarboxazid, phenelzine and tranylcypromine in the past 14 days.
Side effects
Common side effects of this drug are:
- Nausea
- Vomiting
- Drowsiness
- Dizziness
- Fatigue
- Dry mouth
- Headache
Precautions and Warnings
Pregnancy
Breast Feeding
Driving
Alcohol
Other General Warnings
Talk to your doctor if
- You are on other medicines containing paracetamol.
- You are on other cough cold medicines.
- You may have heart or vascular disease such as Raynaud's phenomenon.
- You consume coffee, tea or other products containing caffeine.
- You have liver disease.
Mode of Action
How Does It Work?
- Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen contains phenylephrine, paracetamol, diphenhydramine, and caffeine.
- Phenylephrine is a nasal decongestant; it shrinks or constricts the blood vessels in the nasal passage and improves congestion.
- Diphenhydramine acts by blocking the action of histamine, a natural substance produced by the body during an allergic reaction, and improves allergic symptoms like sneezing, watery eyes, and throat irritation.
- Caffeine acts by increasing alertness and wakefulness.
- Paracetamol acts by inhibiting the synthesis of prostaglandins, which are responsible for causing pain, swelling, and inflammation. Thus, it offers anti-inflammatory properties.
Interactions
Interactions with other medicines
- Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen can interact with certain medications, potentially increasing the risk of side effects or reducing their effectiveness.
- Tricyclic antidepressants: Medications like imipramine, amitriptyline, and doxepin can increase sedation when taken with Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen.
- Cardiovascular Medications: Using Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen with certain heart medications, such as beta-blockers and digoxin, may increase the risk of heart problems.
- Blood Thinners: Combining Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen with blood thinners like warfarin can increase the risk of bleeding.
- MAO Inhibitors: Using Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen within 14 days of taking MAO inhibitors can significantly increase the risk of side effects.
- Other Medications: Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen may also interact with other medications, including lithium.
Interactions with food items
Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen can be taken either with or without food. However, it is generally recommended to take it with food to help prevent stomach upset. This medicine contains caffeine, so it is advisable to avoid other medications or foods that also contain caffeine. It's best to steer clear of items such as coffee, tea, cola drinks, and chocolate, as they may increase your overall caffeine intake.
Dosage
Overdose
Excess of Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen can cause vomiting, nausea, chest pain, sleepiness, drowsiness, agitation, tremors, irregular heartbeats, fever and dilated pupils. If you have taken too much of Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen, contact your doctor or reach out to the nearest hospital immediately.
Missed a Dose
If you have missed taking any dose of Phenylephrine+Caffeine+Diphenhydramine+Paracetamol / Acetaminophen, take it as soon as you remember. If it's already time for the next dose, skip the missed dose and follow the regular dosing schedule.
Frequently Asked Questions (FAQs)
Articles
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References:
- U.S. National Library of Medicine. Phenylephrine. MedlinePlus. 2025 [cited 8th Jun 2026]
- Drugs.com. Phenylephrine: Uses, Dosage, Side Effects, Warnings. 2025 [cited 8th Jun 2026]
- MedlinePlus. Diphenhydramine. [Internet]. U.S. National Library of Medicine. 2025 [cited 8th Jun 2026]
- National Institute of Diabetes and Digestive and Kidney Diseases. Diphenhydramine [Internet]. National Institutes of Health; 2025 [cited 8th Jun 2026]
- Drugs.com. Paracetamol [Internet]. 2025 [cited 8th Jun 2026]
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