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You are here : 3-RX.com > Drugs & Medications > Detailed Drug Information (USP DI) > Antihistamines, Decongestants, and Anticholinergics : Proper Use

Antihistamines, Decongestants, and Anticholinergics (Systemic)

Antihistamines, Decongestants, and Anticholinergics | Before Using | Proper Use | Precautions | Side Effects

Proper Use of This Medicine

Take this medicine only as directed . Do not take more of it and do not take it more often than recommended on the label, unless otherwise directed by your doctor. To do so may increase the chance of side effects.

If this medicine irritates your stomach, you may take it with food or a glass of water or milk, to lessen the irritation.

For patients taking the extended-release capsule or extended-release tablet form of this medicine :

  • Swallow the capsule or tablet whole.
  • Do not crush, break, or chew before swallowing.
  • If the capsule is too large to swallow, you may mix the contents of the capsule with applesauce, jelly, honey, or syrup and swallow without chewing.

Dosing - The dose of these combination medicines will be different for different patients. Follow your doctor's orders or the directions on the label . The following information includes only the average doses for these combinations. If your dose is different, do not change it unless your doctor tells you to do so.

The number of capsules or tablets or teaspoonfuls of syrup that you take depends on the strength of the medicine. Also, the number of doses you take each day and the time between doses depend on whether you are taking a short-acting or a long-acting form of this medicine.

  • For regular (short-acting) dosage forms (syrup, tablets, or chewable tablets):
    • For allergy and cold symptoms:
      • Adults and children 12 years of age and older - 1 or 2 tablets or chewable tablets, or 1 to 2 teaspoonfuls of syrup every four to six hours.
      • Children up to 6 years of age - Use and dose must be determined by your doctor.
      • Children 6 to 12 years of age - 1 chewable tablet or 1 teaspoonful of syrup every four hours.
  • For long-acting dosage forms (extended-release capsules or tablets):
    • For allergy and cold symptoms:
      • Adults and children 12 years of age and older - 1 capsule or tablet every twelve hours.
      • Children up to 12 years of age - Use and dose must be determined by your doctor.

Missed dose - If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage - To store this medicine:

  • Keep out of the reach of children.
  • Store away from heat and direct light.
  • Do not store in the bathroom, near the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down.
  • Keep the liquid form of this medicine from freezing.
  • Do not keep outdated medicine or medicine no longer needed. Be sure that any discarded medicine is out of the reach of children.

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Antihistamines, Decongestants, and Anticholinergics: Before Using


Antihistamines, Decongestants, and Anticholinergics: Precautions

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