You may take penicillin V potassium with or without food. Shake the oral liquid before you measure a dose. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon). When given before surgery or dental work, penicillin V potassium is usually taken 1 hour before and 6 hours after the procedure. Penicillin G potassium is a colorless or white crystal, or a white crystalline powder which is odorless, or practically so, and moderately hygroscopic. It is freely soluble in water, in isotonic sodium chloride solution and in dextrose solution. The structural formula is as shown below. C 16 H 17 KN 2 O 4 S. Nitrofurantoin is an antibiotic medication that is used for the treatment of uncomplicated lower urinary tract infections. It is effective against most gram-positive and gram-negative organisms. Nitrofurantoin’s primary use has remained in treating and prophylaxis of urinary tract infections. Nitrofurantoin is advantageous as it concentrates in the lower urinary tract while maintaining a low The penicillins are bactericidal and act by interfering with bacterial cell wall synthesis. They diffuse well into body tissues and fluids, but penetration into the cerebrospinal fluid is poor except when the meninges are inflamed. They are excreted in the urine in therapeutic concentrations. Penicillin V potassium is used to treat certain infections caused by bacteria such as pneumonia and other respiratory tract infections, scarlet fever, and ear, skin, gum, mouth, and throat infections. It also is used to prevent rheumatic fever (a serious condition that may develop after a strep throat or scarlet fever infection and may cause There are hundreds of different types of antibiotics, but most of them can be classified into 6 groups. Penicillins (such as penicillin, amoxicillin, co-amoxiclav, flucloxacillin and phenoxymethylpenicillin) – widely used to treat a variety of infections, including skin infections, chest infections and urinary tract infections Ching Louis Liu/shutterstock.com. Urinary tract infections (UTIs) are common in small animals, developing in up to 27% of dogs.1 Nearly all infections are caused by pathogenic bacteria, although some are caused by fungi or viruses, albeit rarely. Most bacterial lower UTIs result from bacteria ascending the external genitalia and urethra. The usual dosage is 30 to 50 mg/kg/day, in equally divided doses. For more severe infections this dosage may be doubled but should not exceed 4 g per day. In the treatment of streptococcal infections of the upper respiratory tract (e.g., tonsillitis or pharyngitis), the therapeutic dosage of erythromycin should be administered for at least ten Penicillin G (penicillin G potassium), is an antibiotic prescribed for the treatment of bacterial infections. It's used for treating pneumonia, strep throat, staph infection, diphtheria, meningitis, gonorrhea, and syphilis. It may be administered to prevent heart valve infection before dental procedures for people with certain cardiac conditions. nitrofurantoin. Used for Urinary Tract Infection. Nitrofurantoin (Macrobid) is an antibiotic used to treat or prevent a urinary tract infection (UTI). Some side effects include nausea, headache, and gas. It can also make your urine turn dark yellow or brown. Nitrofurantoin (Macrobid) doesn't have many interactions with other medications. dCYb.