Relieving symptoms of sinus congestion, pressure, runny nose, and sneezing due to colds, upper respiratory tract infections, and allergies. It may also be used for other conditions as determined by your doctor.

Nalex-A 12 suspension is an antihistamine and decongestant combination. The antihistamine works by blocking the action of histamine, which helps reduce symptoms such as watery eyes and sneezing. The decongestant promotes sinus and nasal drainage, which relieves congestion and pressure.

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  • Examples include Nalex-A 12 and Phena-S 12
  • Constipation; diarrhea; dizziness; drowsiness; dry mouth, nose, or throat; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.

    Seek medical attention right away if any of these SEVERE side effects occur:
    Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or other vision changes; confusion; difficulty urinating or inability to urinate; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; mood or mental changes; persistent trouble sleeping; restlessness; seizures; severe dizziness, drowsiness, lightheadedness, or headache; tremor.
  • Nalex-A 12 suspension may be taken with or without food. Shake well before using. Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose. If you miss a dose of Nalex-A 12 suspension and you are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.