Fruit juices are effective against gastritis. Spinach and carrot juice, twice a day helps. Pumpkin juice for a month or two is helpful, when taken in an empty stomach. Foods that cause gas, such as broccoli, cabbage, peas, onion, dried beans and so on are harmful to the stomach.
Sodium hydroxide is a powerful chemical with many aliases: NaOH, lye and caustic soda. Sodium hydroxide is often the active agent in cleaning solutions, but it is also used in the manufacturing of products like textiles, cellophane and paper. This chemical can be very dangerous and can severely damage materials.
The main ingredient, lye, is a very corrosive material that's also used in making drain cleaner and paper. It is sometimes sold as caustic soda or sodium hydroxide, and is often found in hardware stores or from soap-making supplies vendors. Lard is animal fat, generally made from farm animals, like pigs.