Caffeine + Diphenhydramine + Paracetamol (Acetaminophen) + Phenylephrine is a combination medicine used to relieve symptoms of the common cold, flu, and allergies.
This combination is commonly used for:
• Common cold and flu: Relieves nasal congestion, sneezing, and body aches associated with cold and flu.
• Allergy symptoms: Eases sneezing, itching, and a runny nose caused by allergic reactions.
• Fever: Helps lower raised body temperature.
• Minor aches and pains: Provides relief from mild headaches and body pain, even without cold or flu symptoms.
Drowsiness
Dizziness
Dry mouth
Restlessness or insomnia
Nausea and vomiting
Caffeine + Diphenhydramine + Paracetamol (Acetaminophen) + Phenylephrine combines four ingredients, each targeting a different symptom.
Diphenhydramine is an antihistamine. It blocks histamine, a chemical released during allergic reactions, easing symptoms such as sneezing, itching, and a runny nose.
Paracetamol (Acetaminophen) is a pain reliever and fever reducer. It works by reducing the production of prostaglandins, chemicals in the brain that cause pain and raise body temperature.
Phenylephrine is a decongestant. It narrows blood vessels in the nasal passages, reducing swelling and congestion.
Caffeine is a mild stimulant that enhances the pain-relieving effect of Paracetamol and helps counter the drowsiness that Diphenhydramine can cause.

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Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening of any of the symptoms, please consult your doctor.
Frequently asked questions
No, this combination is not a steroid. It consists of a decongestant (Phenylephrine), an antihistamine (Diphenhydramine), a pain reliever and fever reducer (Paracetamol/Acetaminophen), and a central nervous system stimulant (Caffeine).
Before surgery, you should always inform your doctor about any medicines that you are taking, including over-the-counter medications like Caffeine + Diphenhydramine + Paracetamol/Acetaminophen + Phenylephrine.
Weight gain is not typically associated with this combination medication. However, each individual may react differently to medicines and it is best to discuss any concerns with your doctor.
It is generally recommended to avoid consuming alcohol while taking this combination as it could increase drowsiness and dizziness caused by Diphenhydramine, and may also increase the risk of liver damage from Paracetamol/Acetaminophen.
There is no known interaction between this combination medication and most birth control pills. However, always inform your doctor about all the medications you are currently taking to ensure there are no potential interactions.
If you experience symptoms of an allergic reaction such as rash, itching, difficulty breathing, or swelling of the face, lips, or throat after taking this medication, you should seek immediate medical attention.
If you have diabetes, consult your doctor before taking this combination medicine, as it may affect blood sugar levels.
This combination is used for relief of cold and flu symptoms such as headache, nasal congestion, and allergic manifestations. Caffeine enhances analgesic effect, while the other components address pain, congestion, and allergy.
Caffeine + Diphenhydramine + Paracetamol/Acetaminophen + Phenylephrine in other salts







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