Hotex (Phenylephrine Hydrochloride, Guaifenesin, Paracetamol)

Hotex is commonly used to manage several symptoms that accompany common colds, flu, and other upper respiratory infections. The combination addresses nasal blockage, chest congestion, and mild to moderate pain or fever.

• Relieves nasal congestion caused by inflamed nasal mucosa.
• Helps loosen and thin bronchial mucus to facilitate expectoration.
• Reduces fever and alleviates headache, sore throat, or body aches.
• Provides temporary relief of sinus pressure and ear fullness.
• Can be used as part of symptomatic treatment for cold or flu in adults.

• Phenylephrine hydrochloride acts as an alpha‑adrenergic agonist, producing vasoconstriction of the nasal mucosal vessels and thereby decreasing swelling and congestion. Guaifenesin increases the volume and reduces the viscosity of airway secretions, facilitating mucus clearance. Paracetamol exerts analgesic and antipyretic actions primarily through central inhibition of cyclooxygenase enzymes, lowering the perception of pain and resetting the hypothalamic temperature set point.

Adverse reactions may occur with any medication and should be monitored.

Common

• Nausea or upset stomach
• Headache
• Dizziness or light‑headedness
• Dry mouth or throat irritation
• Mild insomnia or restlessness

Serious

• Allergic reactions such as rash, itching, or swelling
• Difficulty breathing or wheezing (anaphylaxis)
• Rapid or irregular heartbeat
• Markedly elevated blood pressure
• Severe liver enzyme elevation (rare with paracetamol)

Before using Hotex, consider the following safety points.

• Avoid use if you have known hypersensitivity to any of the ingredients.
• Use caution in individuals with hypertension, cardiovascular disease, or thyroid disorders because phenylephrine can raise blood pressure.
• Persons with liver impairment should limit paracetamol exposure and may need medical guidance.
• Diabetes patients should monitor blood glucose, as phenylephrine may affect glycemic control.
• Pregnant or breastfeeding women should consult a healthcare professional before use.
• Keep out of reach of children; accidental ingestion can be hazardous.

Hotex may interact with other medicines; review the following categories.

Avoid

• Monoamine oxidase inhibitors (MAOIs) or recent MAOI therapy, which can potentiate hypertensive effects of phenylephrine.
• Other paracetamol‑containing products, to prevent excessive total dose.
• Strong CYP2E1 inducers that may increase paracetamol metabolism and hepatotoxic risk.

Use with caution

• Antihypertensive agents, as phenylephrine may counteract blood‑pressure‑lowering effects.
• Anticoagulants or antiplatelet drugs, because paracetamol can affect platelet function at high doses.
• Triptans or other serotonergic agents, due to potential additive vasoconstrictive actions.
• Diuretics, which may enhance phenylephrine‑induced fluid retention.
• Alcohol, which can increase liver strain when combined with paracetamol.