Histex AC Syrup
$50.00
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Active ingredients (in many formulations) include:
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Codeine — an opioid cough suppressant (antitussive)
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Phenylephrine — a decongestant
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Triprolidine — a first-generation antihistamine (H1 receptor blocker) Drugs.com+2Cigna+2
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The combination is intended to relieve multiple upper respiratory / allergy symptoms such as cough, nasal congestion, runny nose, sneezing, and itching in the nose, throat or eyes. Drugs.com+2Memorial Sloan Kettering Cancer Center+2
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In effect:
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Triprolidine reduces the effects of histamine (thus reducing sneezing, itching, and runny nose). Drugs.com+2DailyMed+2
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Phenylephrine shrinks swollen blood vessels in the nasal passages, reducing congestion. Drugs.com+2DailyMed+2
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Codeine acts on the cough center in the brain to suppress the cough reflex. Drugs.com+2Memorial Sloan Kettering Cancer Center+2
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Syrup form, concentrations, and bottle sizes
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The syrup is formulated as an oral liquid (syrup/solution). Cigna+3DailyMed+3Drugs.com+3
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A common concentration is per 5 mL (one teaspoonful):
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Codeine 10 mg
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Phenylephrine 10 mg
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Triprolidine 2.5 mg WebMD+3GoodRx+3WellRx+3
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The product may come in various bottle sizes. For example, the label for HISTEX™ Syrup lists an 8 fl oz (≈ 237 mL) bottle. DailyMed
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The syrup is often marketed as “alcohol free” and “dye free” in some versions. DailyMed
Dosage / Administration
Here are typical dosing guidelines — but these may vary depending on the specific product version or local regulations, so always check the label or with a clinician.
| Age group | Typical dose | Frequency | Max per 24 hours |
|---|---|---|---|
| Adults and children 12 years or older | 1 teaspoonful (5 mL) | Every 4 to 6 hours | Do not exceed 4 teaspoonfuls (20 mL) in 24 hours WebMD+4DailyMed+4GoodRx+4 |
| Children 6 to under 12 years | ½ teaspoonful (2.5 mL) | Every 4 to 6 hours | Do not exceed 2 teaspoonfuls (10 mL) in 24 hours DailyMed+2Drugs.com+2 |
| Children under 6 years | Use only if directed by a doctor | — | — DailyMed+2Kaiser Permanente+2 |
Description
Histex AC Syrup is a trusted cough and cold medication that helps relieve symptoms caused by allergies, the common cold, or respiratory infections. It combines an antihistamine, a nasal decongestant, and a cough suppressant to provide fast and effective relief.
This syrup works by reducing chest congestion, soothing cough, and clearing nasal passages for easier breathing. It helps control runny nose, sneezing, and throat irritation caused by excessive mucus. Histex AC is often used for short-term relief of coughs due to colds or upper respiratory allergies.
Key Ingredients:
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Chlorpheniramine Maleate: Relieves sneezing, runny nose, and watery eyes.
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Phenylephrine HCl: Reduces nasal congestion by shrinking swollen blood vessels in the nasal passages.
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Dextromethorphan HBr: Suppresses persistent coughing for more comfort and better sleep.
Dosage and Directions:
Take Histex AC Syrup exactly as prescribed by your doctor or according to the instructions on the label. Shake the bottle well before use and measure the dose with a proper medicine cup or spoon. Do not exceed the recommended dose.
Precautions:
Avoid using Histex AC if you are taking MAO inhibitors or other medications that cause drowsiness. Consult your doctor before use if you have high blood pressure, heart disease, or thyroid problems. Keep out of reach of children.
Why Choose Histex AC Syrup?
Histex AC provides fast, targeted relief from coughing and nasal congestion. Its triple-action formula makes it suitable for both adults and children, depending on dosage. It’s a reliable solution to help you feel better and breathe easier during cold and allergy seasons.
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