Allanhist PDX Syrup and Zantac

• Generic Name: brompheniramine / dextromethorphan / guaifenesin / phenylephrine
• Dosage Forms: n.a.
• Other Brand Names: AccuHist PDX Syrup, Allanhist PDX Syrup, Bromhist-PDX, EndaCof-PD, Uni-Hist PDX Syrup

Brompheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.

Phenylephrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Allanhist PDX Syrup is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.

Allanhist PDX Syrup will not treat a cough that is caused by smoking, asthma, or emphysema.

Allanhist PDX Syrup may also be used for purposes not listed in this medication guide.

• Generic Name: ranitidine
• Dosage Forms: tablet, film coated
• Other Brand Names: Zantac

Zantac (ranitidine) belongs to a group of drugs called histamine-2 blockers. Ranitidine works by reducing the amount of acid your stomach produces.

Zantac is used to treat and prevent ulcers in the stomach and intestines. It also treats conditions in which the stomach produces too much acid, such as Zollinger-Ellison syndrome.

Zantac is also used to treat gastroesophageal reflux disease (GERD) and other conditions in which acid backs up from the stomach into the esophagus, causing heartburn.