Brompheniramine, Pseudoephedrine, and Dextromethorphan



AccuHist® PDX Drops; Anaplex® DM; Anaplex® DMX; Andehist DM NR; Bromaline® DM [OTC]; Bromatane DX; Bromaxefed DM RF; Brometane DX; Bromhist-DM; Bromhist PDX; Bromophed DX; Bromphenex DM; Brotapp-DM; Carbofed DM; Cardec DM; Dimaphen DM [OTC]; Dimetapp® DM Children's Cold and Cough [OTC]; EndaCof-DM; EndaCof-PD; Histacol DM Pediatric; Myphetane DX; PediaHist DM; Q-Tapp DM [OTC]; Rondec®-DM Syrup [DSC]







Brompheniramine, Pseudoephedrine, and Dextromethorphan

(brome fen IR a meen, soo doe e FED rin, & deks troe meth OR fan)

U.S. Brand Names
AccuHist® PDX Drops; Anaplex® DM; Anaplex® DMX; Andehist DM NR; Bromaline® DM [OTC]; Bromatane DX; Bromaxefed DM RF; Brometane DX; Bromhist-DM; Bromhist PDX; Bromophed DX; Bromphenex DM; Brotapp-DM; Carbofed DM; Cardec DM; Dimaphen DM [OTC]; Dimetapp® DM Children's Cold and Cough [OTC]; EndaCof-DM; EndaCof-PD; Histacol DM Pediatric; Myphetane DX; PediaHist DM; Q-Tapp DM [OTC]; Rondec®-DM Syrup [DSC]
Pharmacologic Category
Antihistamine; Cough Preparation; Decongestant
Reasons not to take this medicine
  • If you have an allergy to brompheniramine, pseudoephedrine, dextromethorphan, or any other part of this medicine.
  • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.
  • If you have any of the following conditions: Asthma, enlarged prostate gland, glaucoma, heart disease, high blood pressure, intestinal blockage, ulcer disease, or urinary tract blockage.
  • If you have taken isocarboxazid, phenelzine, or tranylcypromine in the last 14 days. Monoamine oxidase inhibitors (eg, isocarboxazid, phenelzine, and tranylcypromine) must be stopped 14 days before this medicine is started. Taking the two together could cause dangerously high blood pressure.
  • If you are breast-feeding.
What is this medicine used for?
  • This medicine is used to relieve allergy symptoms.
  • This medicine is used to stop coughing.
  • This medicine is used to treat nasal congestion.
How does it work?
  • Brompheniramine blocks the allergic reaction by minimizing or preventing the body's reaction to the allergen.
  • Pseudoephedrine shrinks swollen nasal tissue and opens up passages.
  • Dextromethorphan affects the cough center in the brain.
How is it best taken?
  • Take this medicine with or without food. Take with food if it causes an upset stomach.
What do I do if I miss a dose? (does not apply to patients in the hospital)
  • Take a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed dose and return to your regular schedule.
  • Do not take a double dose or extra doses.
  • Many times this medicine is taken on an as needed basis. Do not take more often than every 6 hours, unless instructed by healthcare provider.
What are the precautions when taking this medicine?
  • Wear disease medical alert identification.
  • This medicine is not for coughs due to smoking or lung disease.
  • Check medicines with healthcare provider. This medicine may not mix well with other medicines.
  • Avoid alcohol (includes wine, beer, and liquor).
  • Limit caffeine (for example, tea, coffee, cola) and chocolate intake. Use with this medicine may cause nervousness, shakiness, and fast heartbeat.
  • Tell healthcare provider if you are pregnant or plan on getting pregnant.
What are some possible side effects of this medicine?
  • Feeling lightheaded, sleepy, having blurred vision, or a change in thinking clearly. Avoid driving, doing other tasks or activities that require you to be alert or have clear vision until you see how this medicine affects you.
  • Feeling dizzy. Rise slowly over several minutes from sitting or lying position. Be careful climbing.
  • Nervous and excitable.
  • Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.
  • Inability to sleep.
What should I monitor?
  • Change in condition being treated. Is it better, worse, or about the same?
  • Take good care of your teeth. See a dentist regularly.
Reasons to call healthcare provider immediately
  • If you suspect an overdose, call your local poison control center immediately or dial 911.
  • Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.
  • Chest pain or pressure, fast heartbeat, or passing out.
  • Severe headache.
  • Persistent cough.
  • Feeling extremely tired or weak.
  • Any rash.
  • No improvement in condition or feeling worse.
How should I store this medicine?
  • Store at room temperature.
General statements
  • If you have a life-threatening allergy, wear allergy identification at all times.
  • Do not share your medicine with others and do not take anyone else's medicine.
  • Keep all medicine out of the reach of children and pets.
  • Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).
  • Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.
Brand Names: