Famotidine is an over-the-counter medication used to treat heartburn, acid reflux, and ulcers. This works by reducing the amount of acid produced in the stomach. Famoside (famotidine) is available in 20 mg and 0 mg tablets and is available online in the United States. This is a safe and effective treatment for those who frequently suffer from heartburn and acid reflux. Famotidine (famotidine) is a good choice for those looking for quick relief and long-term prevention of heartburn and acid reflux.