Bactrim - a combined drug, containing two active ingredients: sulfanamide drug sulfamethoxazole and derivative of diaminopyrimidine - trimethoprimum. Colibacillus life activity oppresses that leads to reduction of synthesis of thymine, riboflavinum, niacin, etc. group B vitamins in intestines. Duration of therapeutic effect makes 7 years.

Zantac - ranitidin - the drug is intended for the treatment of duodenal ulcers, benign gastric ulcer, postoperative ulcer, reflux esophagitis, Zollinger-Ellison syndrome, epigastric or chest pain. The administration of ranitidine is indicated in cases where a decrease in gastric secretion and a decrease in the production of hydrochloric acid is desirable, for the prevention of gastrointestinal bleeding, for the prevention of recurrence of bleeding in patients with bleeding ulcers of the stomach and duodenum, before general anesthesia in patients with a presumed risk of aspiration of acidic stomach contents (Mendelssohn syndrome), especially in women during childbirth delivery clashes.

is given to patients for treating severe acne that do not respond to other medicines

Peripheral vasodilator with predominant effect on venous vessels. It is used for the prevention of angina in CHF, hypertension in the "small" circulation, "pulmonary" heart (treatment as a part of combination therapy), spasm of peripheral arteries (obliterating endarteritis, angiospastic retinitis)