Gripex Duo (Phenylephrine Hydrochloride, Paracetamol)

Gripex Duo is used to address several symptoms that commonly accompany colds and flu. It may be selected when a combined approach to pain, fever, and nasal congestion is desired.

• Relief of headache associated with cold or flu
• Reduction of fever and associated discomfort
• Temporary alleviation of nasal congestion due to upper respiratory infections
• Relief of mild to moderate body aches and pains
• Supportive care for sinus pressure and pressure‑related discomfort

Side effects of Gripex Duo are generally mild, but users should be aware of both common and less frequent reactions.

Common

• Nausea or upset stomach
• Mild dizziness
• Transient headache unrelated to the condition being treated
• Dry mouth or throat irritation
• Mild insomnia or restlessness

Serious

• Allergic reactions such as rash, itching, or swelling
• Rapid heartbeat or palpitations
• Severe hypertension or sudden increase in blood pressure
• Liver function abnormalities with prolonged high‑dose use
• Signs of anaphylaxis, including difficulty breathing

Before using Gripex Duo, consider the following precautions to ensure safe use.

• Do not exceed the recommended daily dose; follow package instructions.
• Avoid use in individuals with known hypersensitivity to phenylephrine, paracetamol, or any excipients.
• Use caution if you have hypertension, heart disease, diabetes, or thyroid disorders.
• Consult a healthcare professional before use during pregnancy or breastfeeding, as safety data are limited.
• Keep out of reach of children; accidental ingestion can be hazardous.
• Do not combine with other products containing the same active ingredients to avoid overdose.

Gripex Duo may interact with other medications; awareness of these interactions can help prevent adverse effects.

Avoid

• Other decongestants (e.g., pseudoephedrine) that may increase blood pressure.
• Additional paracetamol‑containing products, which can lead to hepatotoxicity.
• Monoamine oxidase inhibitors (MAOIs) within 14 days of use, due to potential hypertensive crisis.

Use with caution

• Anticoagulants such as warfarin, as paracetamol may affect clotting parameters.
• Antihypertensive agents, because phenylephrine can counteract blood‑pressure‑lowering effects.
• Certain antidepressants (e.g., SSRIs) that may increase the risk of serotonin syndrome when combined with phenylephrine.
• Alcohol, which can enhance liver stress when combined with paracetamol.