DRUGS & SUPPLEMENTS
INDICATIONS AND USAGE
Clortetrin tablets are indicated in the treatment of infections caused by susceptible strains of the designated microorganisms in the conditions below:
Rocky Mountain spotted fever, typhus fever and the typhus group, Q fever, rickettsialpox, and tick fevers caused by rickettsiae;
Respiratory tract infections caused by Mycoplasma pneumoniae;
Lymphogranuloma venereum due to Chlamydia trachomatis;
Psittacosis (Ornithosis) due to Chlamydia psittaci;
Trachoma due to Chlamydia trachomatis, although the infectious agent is not always eliminated, as judged by immunofluorescence;
Inclusion conjunctivitis caused by Chlamydia trachomatis;
Nongonococcal urethritis in adults caused by Ureaplasma urealyticum or Chlamydia trachomatis;
Relapsing fever due to Borrelia recurrentis;
Chancroid caused by Haemophilus ducreyi;
Plague due to Yersinia pestis;
Tularemia due to Francisella tularensis;
Cholera caused by Vibrio cholerae;
Campylobacter fetus infections caused by Campylobacter fetus;
Brucellosis due to Brucella species (in conjunction with streptomycin);
Bartonellosis due to Bartonella bacilliformis;
Granuloma inguinale caused by Calymmatobacterium granulomatis;
Clortetrin tablets are indicated for treatment of infections caused by the following gram-negative microorganisms, when bacteriologic testing indicates appropriate susceptibility to the drug:
Respiratory tract infections caused by Haemophilus influenzae;
Respiratory tract and urinary tract infections caused by Klebsiella species.
Clortetrin tablets are indicated for treatment of infections caused by the following gram-positive microorganisms, when bacteriologic testing indicates appropriate susceptibility to the drug:
Upper respiratory infections caused by Streptococcus pneumoniae;
Skin and skin structure infections caused by Staphylococcus aureus. (Note: Tetracyclines, including demeclocycline, are not the drugs of choice in the treatment of any type of staphylococcal infection.)
When penicillin is contraindicated, tetracyclines, including Clortetrin, are alternative drugs in the treatment of the following infections:
Uncomplicated urethritis in men due to Neisseria gonorrhoeae, and for the treatment of other uncomplicated gonococcal infections;
Infections in women caused by Neisseria gonorrhoeae;
Syphilis caused by Treponema pallidum subspecies pallidum;
Yaws caused by Treponema pallidum subspecies pertenue;
Listeriosis due to Listeria monocytogenes;
Anthrax due to Bacillus anthracis;
Vincent’s infection caused by Fusobacterium fusiforme;
Actinomycosis caused by Actinomyces israelii;
Clostridial diseases caused by Clostridium species.
In acute intestinal amebiasis, Clortetrin tablets may be a useful adjunct to amebicides.
In severe acne, Clortetrin tablets may be a useful adjunctive therapy.
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Clortetrin tablets and other antibacterial drugs, Clortetrin tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
This drug is contraindicated in persons who have shown hypersensitivity to any of the tetracyclines or any of the components of the product formulation.
Clortetrin, LIKE OTHER TETRACYCLINE-CLASS ANTIBIOTICS, CAN CAUSE FETAL HARM WHEN ADMINISTERED TO A PREGNANT WOMAN. IF ANY TETRACYCLINE IS USED DURING PREGNANCY, OR IF THE PATIENT BECOMES PREGNANT WHILE TAKING THESE DRUGS, THE PATIENT SHOULD BE APPRISED OF THE POTENTIAL HAZARD TO THE FETUS.
THE USE OF DRUGS OF THE TETRACYCLINE CLASS DURING TOOTH DEVELOPMENT (LAST HALF OF PREGNANCY, INFANCY AND CHILDHOOD TO THE AGE OF 8 YEARS) MAY CAUSE PERMANENT DISCOLORATION OF THE TEETH (YELLOW-GRAY-BROWN). This adverse reaction is more common during long-term use of the drugs but has been observed following repeated short-term courses. Enamel hypoplasia has also been reported. TETRACYCLINE DRUGS, THEREFORE, SHOULD NOT BE USED DURING TOOTH DEVELOPMENT UNLESS OTHER DRUGS ARE NOT LIKELY TO BE EFFECTIVE OR ARE CONTRAINDICATED.
All tetracyclines form a stable calcium complex in any bone-forming tissue. A decrease in fibula growth rate has been observed in premature human infants given oral tetracycline in doses of 25 mg/kg every six hours. This reaction was shown to be reversible when the drug was discontinued.
Results of animal studies indicate that tetracyclines cross the placenta, are found in fetal tissues, and can have toxic effects on the developing fetus (often related to retardation of skeletal development). Evidence of embryotoxicity has also been noted in animals treated early in pregnancy. The anti-anabolic action of the tetracyclines may cause an increase in BUN. While this is not a problem in those with normal renal function, in patients with significantly impaired function, higher serum levels of tetracycline may lead to azotemia, hyperphosphatemia, and acidosis. If renal impairment exists, even usual oral or parenteral doses may lead to excessive systemic accumulation of the drug and possible liver toxicity. Under such conditions, lower than usual total doses are indicated and, if therapy is prolonged, serum level determinations of the drug may be advisable.
Photosensitivity manifested by an exaggerated sunburn reaction has been observed in some individuals taking tetracyclines. Phototoxic reactions can occur in individuals taking demeclocycline, and are characterized by severe burns or exposed surfaces resulting from direct exposure of patients to sunlight during therapy with moderate or large doses of demeclocycline. Patients apt to be exposed to direct sunlight or ultraviolet light should be advised that this reaction can occur, and treatment should be discontinued at the first evidence of erythema of the skin.
Administration of Clortetrin has resulted in appearance of the diabetes insipidus syndrome (polyuria, polydipsia and weakness) in some patients on long-term therapy. The syndrome has been shown to be nephrogenic, dose-dependent and reversible on discontinuance of therapy. Patients who are experiencing central nervous system symptoms associated with demeclocycline therapy should be cautioned about driving vehicles or using hazardous machinery while on demeclocycline therapy.
Clostridium difficile associated with diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including Clortetrin, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile.
C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.
If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.
Pseudotumor cerebri in adults has been associated with the use of tetracyclines. The usual clinical manifestations are headache and blurred vision. Bulging fontanels have been associated with the use of tetracyclines in infants. While both of these conditions and related symptoms usually resolve soon after discontinuation of the tetracycline, the possibility for permanent sequelae exists.
As with other antibiotic preparations, use of this drug may result in overgrowth of nonsusceptible organisms, including fungi. If superinfection occurs, the antibiotic should be discontinued and appropriate therapy should be instituted. Incision and drainage or other surgical procedures should be performed in conjunction with antibiotic therapy, when indicated. Prescribing Clortetrin tablets in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.
Information for Patients
Photosensitivity manifested by an exaggerated sunburn reaction has been observed in some individuals taking tetracyclines. Patients apt to be exposed to direct sunlight or ultraviolet light should be advised that this reaction can occur with tetracycline drugs, and treatment should be discontinued at the first evidence of skin erythema. Concurrent use of tetracyclines with oral contraceptives may render oral contraceptives less effective (see Drug Interactions ). Patients should be informed that Clortetrin tablets should be taken at least 1 hour before meals or 2 hours after meals (see DOSAGE AND ADMINISTRATION ). Unused supplies of tetracycline antibiotics should be discarded by the expiration date. Patients who are experiencing headache, dizziness, light-headedness, vertigo, or blurred vision while on demeclocycline therapy, should be cautioned about driving vehicles or using hazardous machinery while receiving demeclocycline therapy (see WARNINGS ).
Patients should be counseled that antibacterial drugs, including Clortetrin tablets should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When Clortetrin tablets are prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed.
Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by Clortetrin tablets or other antibacterial drugs in the future.
Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic. If this occurs, patients should contact their physician as soon as possible.
In venereal diseases when coexistent syphilis is suspected, darkfield examination should be done before treatment is started and the blood serology repeated monthly for at least 4 months. In long-term therapy, periodic laboratory evaluation of organ systems, including hematopoietic, renal, and hepatic, should be performed. All patients with gonorrhea should have a serologic test for syphilis at the time of diagnosis. Patients treated with Clortetrin should have a follow-up serologic test for syphilis after 3 months.
Because tetracyclines have been shown to depress plasma prothrombin activity, patients who are on anticoagulant therapy may require downward adjustment of their anticoagulant dosage. Since bacteriostatic drugs may interfere with the bactericidal action of penicillins, it is advisable to avoid giving tetracycline-class drugs in conjunction with penicillin.
Concurrent use of tetracyclines with oral contraceptives may render oral contraceptives less effective.
The concurrent use of tetracyclines and methoxyflurane has been reported to result in fatal renal toxicity.
Absorption of tetracyclines is impaired by antacids containing aluminum, calcium or magnesium, and by iron-containing preparations.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Long-term studies in animals to evaluate carcinogenic potential of Clortetrin have not been conducted. However, there has been evidence of oncogenic activity in rats in studies with the related antibiotics oxytetracycline and minocycline (thyroid tumors).
Although mutagenicity studies of Clortetrin have not been conducted, positive results in in vitro mammalian cell assays (i.e., mouse lymphoma and Chinese hamster lung cells) have been reported for related antibiotics (tetracycline hydrochloride and oxytetracycline) (see WARNINGS; ANIMAL PHARMACOLOGY AND ANIMAL TOXICOLOGY ).
Clortetrin had no effect on fertility when administered in the diet to male and female rats at a daily intake of 45 times the human dose.
Pregnancy Category D
Results of animal studies indicate that tetracyclines cross the placenta, are found in fetal tissues, and can have toxic effects on the developing fetus (often related to retardation of skeletal development). Evidence of embryotoxicity has been noted in animals treated early in pregnancy.
(See WARNINGS ).
Labor and Delivery
The effect of tetracyclines on labor and delivery is unknown.
Tetracyclines are excreted in human milk. Because of the potential for serious adverse reactions in nursing infants from the tetracyclines, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother.
Not for use in patients younger than eight years of age (see WARNINGS ; PRECAUTIONS , General and DOSAGE AND ADMINISTRATION ).
The following reactions have been reported in patients receiving tetracyclines:
Gastrointestinal: Anorexia, nausea, vomiting, diarrhea, glossitis, dysphagia, enterocolitis, pancreatitis, and inflammatory lesions (with monilial overgrowth) in the anogenital region, increases in liver enzymes, and hepatic toxicity has been reported rarely.
Rarely, hepatitis and liver failure have been reported. These reactions have been caused by both the oral and parenteral administration of tetracyclines.
Instances of esophageal ulcerations have been reported in patients receiving oral tetracyclines. Most of the patients were reported to have taken the medication immediately before lying down (see DOSAGE AND ADMINISTRATION ).
Skin: Maculopapular and erythematous rashes, erythema multiforme. Exfoliative dermatitis has been reported but is uncommon. Fixed drug eruptions and Stevens-Johnson syndrome have been reported rarely. Lesions occurring on the glans penis have caused balanitis. Pigmentation of the skin and mucous membranes has also been reported. Photosensitivity is discussed above (see WARNINGS ).
Renal toxicity: Acute renal failure. Rise in BUN has been reported and is apparently dose related. Nephrogenic diabetes insipidus (see WARNINGS ).
Hypersensitivity reactions: Urticaria, angioneurotic edema, polyarthralgia, anaphylaxis, anaphylactoid purpura, pericarditis, exacerbation of systemic lupus erythematosus, lupus-like syndrome, pulmonary infiltrates with eosinophilia.
Hematologic: Hemolytic anemia, thrombocytopenia, neutropenia and eosinophilia have been reported.
CNS: Pseudotumor cerebri (benign intracranial hypertension) in adults and bulging fontanels in infants (see PRECAUTIONS, General ). Dizziness, headache, tinnitus, and visual disturbances have been reported. Myasthenic syndrome has been reported rarely.
Other: When given over prolonged periods, tetracyclines have been reported to produce brown-black microscopic discoloration of thyroid glands. No abnormalities of thyroid function studies are known to occur. Very rare cases of abnormal thyroid function have been reported.
Tooth discoloration has occurred in pediatric patients less than 8 years of age (see WARNINGS ), and also has been reported rarely in adults.
In case of overdosage, discontinue medication, treat symptomatically and institute supportive measures. Tetracyclines are not removed in significant quantities by hemodialysis or peritoneal dialysis.
DOSAGE AND ADMINISTRATION
Therapy should be continued for at least 24 to 48 hours after symptoms and fever have subsided.
Absorption of tetracycline is impaired by antacids containing aluminum, calcium, or magnesium, and by iron-containing preparations. Foods and some dairy products also interfere with absorption. Oral forms of tetracycline should be given at least 1 hour before or 2 hours after meals.
In Patients With Renal Impairment
. Tetracyclines should be used cautiously in patients with impaired renal function. Total dosage should be decreased by reduction of recommended individual doses and/or by extending time intervals between doses.
In Patients With Liver Impairment
Tetracyclines should be used cautiously in patients with impaired liver function. Total dosage should be decreased by reduction of recommended individual doses and/or by extending time intervals between doses. Administration of adequate amounts of fluid with the oral formulations of tetracyclines is recommended to wash down the drugs and reduce the risk of esophageal irritation and ulceration (see ADVERSE REACTIONS ).
Usual Daily Dose
Four divided doses of 150 mg each or two divided doses of 300 mg each.
For Pediatric Patients Above Eight Years of Age
Usual daily dose, 7 to 13 mg per kg body weight per day, depending upon the severity of the disease, divided into two to four doses not to exceed adult dosage of 600 mg per day.
Gonorrhea patients sensitive to penicillin may be treated with demeclocycline administered as an initial oral dose of 600 mg followed by 300 mg every 12 hours for four days to a total of 3 grams.
Clortetrin Tablets USP, 150 mg are available as pink, round, biconvex, film-coated, unscored tablets, debossed with “stylized b” 701 on one side and 150 on the other, packaged in bottle of 100 (NDC 0555-0701-02) tablets.
Clortetrin Tablets USP, 300 mg are available as pink, round, biconvex, film-coated, unscored tablets, debossed with “stylized b” 702 on one side and 300 on the other, packaged in bottle of 48 (NDC 0555-0702-84) tablets.
Dispense in a tight, light-resistant container as defined in the USP, with a child-resistant closure (as required).
Store at 20º to 25ºC (68º to 77ºF).
KEEP THIS AND ALL MEDICATIONS OUT OF THE REACH OF CHILDREN.
ANIMAL PHARMACOLOGY AND ANIMAL TOXICOLOGY
Hyperpigmentation of the thyroid has been produced by members of the tetracycline class in the following species: in rats by oxytetracycline, doxycycline, tetracycline PO4 and methacycline; in minipigs by doxycycline, minocycline, tetracycline PO4, and methacycline; in dogs by doxycycline and minocycline; in monkeys by minocycline.
Minocycline, tetracycline PO4, methacycline, doxycycline, tetracycline base, oxytetracycline HCl, and tetracycline HCl were goitrogenic in rats fed a low iodine diet. This goitrogenic effect was accompanied by high radioactive iodine uptake. Administration of minocycline also produced a large goiter with high radioiodine uptake in rats fed a relatively high iodine diet.
Treatment of various animal species with this class of drugs has also resulted in the induction of thyroid hyperplasia in the following: in rats and dogs (minocycline), in chickens (chlortetracycline), and in rats and mice (oxytetracycline). Adrenal gland hyperplasia has been observed in goats and rats treated with oxytetracycline.
TEVA PHARMACEUTICALS USA, INC.
North Wales, PA 19454
Rev. B 3/2016
Clortetrin pharmaceutical active ingredients containing related brand and generic drugs:
Active ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.
Clortetrin available forms, composition, doses:
Form of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.
Clortetrin destination | category:
Destination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.
Clortetrin Anatomical Therapeutic Chemical codes:
A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.
Clortetrin pharmaceutical companies:
Pharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.
Frequently asked QuestionsCan i drive or operate heavy machine after consuming Clortetrin?
Depending on the reaction of the Clortetrin after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Clortetrin not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.Is Clortetrin addictive or habit forming?
Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.
Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.
Reviewsdrugs.com conducted a study on Clortetrin, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Clortetrin consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.
Visitor reported usefulNo survey data has been collected yet
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The information was verified by Dr. Rachana Salvi, MD Pharmacology