In addition to the general indications for all members of the tetracycline antibiotics group, doxycycline is frequently used to treat Lyme disease, chronic prostatitis, sinusitis, pelvic inflammatory disease, Moraxella catarrhalis, Brucella melitensis, Chlamydia pneumoniae, and Mycoplasma pneumoniae are generally susceptible to doxycycline, while some Haemophilus spp., Mycoplasma hominis, and Pseudomonas aeruginosa have developed resistance to varying degrees. Some Gram-positive bacteria have developed resistance to doxycycline. Up to 44% of Streptococcus pyogenes and up to 74% of S. faecalis specimens have developed resistance to the tetracycline group of antibiotics. When bacteriologic testing indicates appropriate susceptibility to the drug, doxycycline may be used to treat these infections caused by Gram-positive bacteria: The World Health Organization Guidelines states that the combination of doxycycline with either artesunate or quinine may be used for the treatment of uncomplicated malaria due to Plasmodium falciparum or following intravenous treatment of severe malaria. Doxycycline kills the symbiotic Wolbachia bacteria in the reproductive tracts of parasitic filarial nematodes, making the nematodes sterile, and thus reducing transmission of diseases such as onchocerciasis and elephantiasis. Doxycycline has been used successfully to treat sexually transmitted, respiratory, and ophthalmic infections. Natasha Press, MD, FRCPC (biography and disclosures) What I did before A 32 year old woman, otherwise healthy, presented with a “spider-bite”. It was associated with some surrounding cellulitis but no fever or other systemic features. I recommended incision and drainage, but she wasn’t keen on it, so I gave her a 7-day prescription for cephalexin (keflex) 500 mg po qid. What changed my practice The woman returned to the office 1 week later. The abscess had increased in size and another one had appeared on her labia. She was in significant discomfort and reported no improvement with the cephalexin. Incision and drainage of her abscesses were done, and the culture result from the swab showed community-associated methicillin resistant Staphylococcus aureus (ca-MRSA). This patient did not improve because her abscesses were caused by ca-MRSA which is resistant to cephalexin and other beta-lactam antibiotics.
Assuming your personal physician will help you stockpile antibiotics for TEOTWAWKI, which should you request? Is there a logical reason to have amoxicillin on hand rather than doxycycline? No antibiotic is effective against every type of microbe. Certain ones will kill aerobic bacteria, others are used for anaerobic bacteria, still others are effective against resistant strains, and certain people are allergic to or intolerant of various antibiotics. The following are all generics, running about $10 for about a months treatment. Amoxicillin is the old standby for most respiratory infections (probably most of which are viral and dont even require antibiotics). It is excellent for strep throat and some strains of pneumococcal bacteria. It is well-tolerated, causing little stomach distress or diarrhea. The drawbacks are that some people are truly allergic, and many bacteria have developed resistance to amoxicillin (especially staph) through overuse among both humans and animals. Amoxicillin / clavulanate is a penicillin-type antibiotic. The clavulanate increases susceptability of some bacteria to the amoxicillin. Bactrim (sulfamethoxazole and trimethoprim) is a combination sulfa antibiotic composed of two antibiotics: trimethprim and sulfamethoxazole. Read more I assume you have have been tested for all organisms and taken the appropriate amount of antibiotics for time as directed by the Doctor who gave them to you. You may have a Vesicoureteral reflux the retrograde passage of urine from the bladder into the upper urinary tract. Staphylococci can cause multiple different types of infection. Best treatment can be determined by exam and evaluation of your entire physical state. Read more There should be no interaction between sulfa or an allergy to Bactrim (sulfamethoxazole and trimethoprim) (which contains a sulfa antibiotic - sulfamethoxazole and another component, trimethoprim) and doxycycline. Read more Bactrim (sulfamethoxazole and trimethoprim) contains a sulfonamide ("sulfa drug") called sulfamethoxazole. This can be diagnosed by either a contrast voiding cystourethrogram or radionuclide cystogram. Whether one agent is better than another depends on many factors, including the sensitivity of the strain of s. With your stomach problem you should avoid any meds not clearly of benefit. It needs to be avoided by people with sulfa allergy. Aureus, the site of infection, and a variety of other factors, including the propensity of the patient to develop allergic reactions, which is greater for Bactrim (sulfamethoxazole and trimethoprim) which contains a sulfa drug. Read more The strength of an antibiotic is measured by how active it is against a specific organism. Cephalexin (Keflex) is less reliable for UTI; many UTI bacteria are resistant to it. For the right bug, plain old penicillin may be the 'strongest'. Ask your doctor about possible treatment with a quinolone like ciprofloxacin, levofloxacin, and others. Read more Bactrim (sulfamethoxazole and trimethoprim) is a combination of 2 drugs, trimetoprim and sulfamethoxazole. The most important thing to know is the sensitivity or susceptibilities of your bacteria. Read more Both antibiotics are effective bactericidal drugs. The first is a pyrimidine derivative and the second is a sulfonamide (sulfa). Read more See 1 more doctor answer Doxycycline can sometimes cause stomach upset, and this can potentially limit its use. People who are allergic to Keflex (generic cephalexin) may need to avoid other so-called beta-lactam antibiotics, which include the penicillins and cephalosporins. By foreign objects like piercing jewelry are often due to a mixture of bacteria, which sometimes requires treatment with a mixture of antibiotics. Read more See 1 more doctor answer Your vomiting could be due to medication side effects but if you are also having chills it could mean that you may be having pyelonephritis which means the infection has ascended up in the urinary tract into the lower part of the kidneys (especially if you also have fever and flank pain plus your high wbc) ).
Doctors give trusted answers on uses, effects, side-effects, and cautions Dr. Hoffmann on keflex vs doxycycline Vibramycin is a brand name of doxycycline. Many doctors, therefore, will prescribe both cephalexin to cover Group A Streptococcus, as well as septra or doxycycline to cover the ca-MRSA.