Learn about Zantac (Ranitidine Hcl) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. Zantac vs Nexium. What are Zantac and Nexium? Zantac is the trade name of of a drug called as ranitidine which is a histamine H2-receptor. It is used in the treatment of peptic ulcer disease (PUD), dyspepsia i.e. acidity, stress ulcer prevention, and gastroesophageal reflux disease (GERD). Adults: Zantac Injection is indicated for the treatment of duodenal ulcer, benign gastric ulcer, post - operative ulcer, reflux oesophagitis, Zollinger - Ellison Syndrome and the following conditions where reduction of gastric secretion and acid output is desirable: Maximum Strength Zantac 150® Cool Mint Tablets prevent and relieve heartburn associated with acid indigestion. While effective at managing symptoms, there are some Zantac side effects to be aware of that are associated with the drug’s active ingredient, ranitidine. Generic For Zantac: will give you the life you aspire for. Much like the brand-name treatments, Generic Zantac can be acquired as being a medication so when a good generic medicine. OTC Zantac only comes as a tablet you take by mouth. The main active ingredient in Zantac is ranitidine. It comes in strengths of 75 mg and 150 mg. Zantac easy to swallow tablets come in two strengths: Zantac 150 mg ranitidine (as hydrochloride) for 12‐hour active relief from heartburn and acid indigestion due to gastro‐oesophageal reflux The active ingredient in Zantac 150 Tablets and Zantac 300 Tablets is ranitidine hydrochloride (HCl), USP, a histamine H 2-receptor antagonist. What is the active ingredient in Zantac 75 ®? The active ingredient is ranitidine. What time of day should I take Zantac 75 ®? Zantac 75 ® can be taken 30 to 60 minutes before eating food or drinking beverages that cause heartburn to prevent symptoms, or it can be taken when heartburn symptoms strike, providing relief in as little as 30.