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Roxitromicina (Rulide)

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Roxitromicina is part of the family of medications known as macrolide antibiotics and is commonly used in the treatment of bacterial infections. Roxitromicina is generically prescribed as roxithromycin and can cause life threatening heart complications in patients who also take pimozide, astemizole, cisapride, ergot medications, and terfenadine. Roxitromicina is an ineffective treatment option for patients suffering from infections caused by a virus or bacterium.

Other names for this medication:
Biaxsig, Remora, Roxithromycin, Rulid, Rulide

Similar Products:
Dificid, Zmax, Biaxin XL, Zithromax


Also known as:  Rulide.


Each Roxitromicina tablet contains either 150mg or 300mg of the active ingredient roxithromycin. Each tablet also contains: hydroxypropylcellulose, poloxamer, povidone, colloidal anhydrous silica, magnesium stearate (470), purified talc (553), maize starch, hypromellose, anhydrous glucose, titanium dioxide (171), propylene glycol (1520). Roxitromicina does not contain gluten, sucrose, lactose, tartrazine or any other azo dyes.


Roxitromicina is typically prescribed for a period of 7 to 14 days and patients should take the medication for as long as it has been prescribed to prevent the infection from returning even if they become asymptomatic. Patients should not however, take doses larger than has been prescribed as this can result in an overdose. Overdosing requires immediate medical intervention and may present with symptoms which include abdominal pain, nausea, diarrhea, vomiting, and a general and prolonged feeling of illness.


Immediately telephone your doctor or pharmacist. Do this even if there are no signs of discomfort or poisoning.


Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) away from moisture, light and heat. Do not store in the bathroom. Keep in a tight, light-resistant container. Keep out of the reach of children.

Side effects

The most common side effects associated with Roxitromicina are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


The safety of roxithromycin has not been demonstrated in patients with impaired hepatic or renal function. Caution should be exercised if roxithromycin is administered to patients with impaired hepatic or renal function. If administered to patients with severe impaired hepatic function (eg. hepatic cirrhosis with jaundice and/or ascites), consideration should be given to reducing the daily dosage to half the usual dosage.

Prolonged or repeated use of antibiotics including roxithromycin may result in superinfection by resistant organisms. In the event of superinfection, roxithromycin should be discontinued and appropriate therapy instituted.

When indicated, incision, drainage or other appropriate surgical procedures should be performed in conjunction with antibiotic therapy.

Antibiotic associated pseudomembranous colitis has been reported with many antibiotics. A toxin produced by Clostridium difficile appears to be the primary cause. The severity of the colitis may range from mild to life threatening. It is important to consider this diagnosis in patients who develop diarrhoea or colitis in association with antibiotic use (this may occur up to several weeks after cessation of antibiotic therapy). Mild cases usually respond to drug discontinuation alone. However, in moderate to severe cases, appropriate therapy with a suitable oral antibacterial agent effective against Clostridium difficile should be considered. Fluids, electrolytes and protein replacement therapy should be provided when indicated.

Roxithromycin, like erythromycin, has been shown in vitro to elicit a concentration - dependent lengthening in cardiac action potential duration. Such an effect is manifested only at supra – therapeutic concentrations. Accordingly, the recommended doses should not be exceeded. In certain conditions macrolides, including roxithromycin, have the potential to prolong the QT interval. Therefore roxithromycin should be used with caution in patients with congenital prolongation of the QT interval, with ongoing proarrhythmic conditions (ie uncorrected hypokalemia or hypomagnesaemia, clinically significant bradycardia), and in patients receiving Class IA and III antiarrhythmic agents.

roxitromicina suspension

The dominant bacteria were isolated from diseased fish. The pure culture of the isolated strain was analyzed using conventional physiological and biochemical tests, together with 16S rDNA gene sequencing. An experimental infection of Carassius auratus gibelio with the isolated strain was performed to fulfill the Koch postulates. K-B method was used for antibiotic susceptibility testing.

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Universal quantitative models using NIR reflectance spectroscopy were developed for the analysis of API contents (active pharmaceutical ingredient) in roxithromycin and erythromycin ethylsuccinate tablets from different manufacturers in China. The two quantitative models were built from 78 batches of roxithromycin samples from 18 different manufacturers with the API content range from 19.5% to 73.9%, and 66 batches erythromycin ethylsuccinate tablets from 36 manufacturers with the API content range from 28.1% to 70.9%. Three different spectrometers were used for model construction in order to have robust and universal models. The root mean square errors of cross validation (RMSECV) and the root mean square errors of prediction (RMSEP) of the model for roxithromycin tablets were 1.84% and 1.45%, respectively. The values of RMSECV and RMSEP of the model for erythromycin ethylsuccinate tablets were 2.31% and 2.16%, respectively. Based on the ICH guidelines and characteristics of NIR spectroscopy, the quantitative models were then evaluated in terms of specificity, linearity, accuracy, precision, robustness and model transferability. Our study has shown that it is feasible to build a universal quantitative model for quick analysis of pharmaceutical products from different manufacturers. Therefore, the NIR method could be used as an effective method for quick, non-destructive inspection of medicines in the distribution channels or open market.

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The paper describes a new and selective analytical sample treatment for quantitative extraction and preconcentration of erythromycin in presence of other macrolide antibiotics in sheep milk samples. The methodology is based on the use of a molecular imprinted polymer (MIP) employed as solid phase extraction sorbent (MISPE). The synthesized material by bulk polymerization using erythromycin (ERY) as template was evaluated as solid phase extraction sorbent, in a novel sample treatment technique that can be coupled to high-performance liquid chromatography with diode-array detector (HPLC-DAD). MIP selectivity was studied for other macrolide antibiotics with similar structures, such as tylosin (TYL), spiramycin (SPI), josamycin (JOS), roxithromycin (ROX) and ivermectin (IVER) getting recoveries for these interferents lower than 35%, for all cases except for ROX, which recoveries were around 85%. The variables affecting the molecularly imprinted solid-phase extraction (MISPE) procedure were optimized to select the best conditions of selectivity and sensitivity to determine ERY at concentration levels established by EU legislation in sheep milk. Under the selected experimental conditions, quantification limit was 24.1 µg kg(-1). Recoveries were higher than 98%, with RSDs between 0.7% and 2%. The proposed MISPE-HPLC method was validated and successfully applied to ERY analysis in sheep milk samples.

roxitromicina antibiotic

We measured clinical response after 10 and 28 days, defined in 4 ways: (1) decrease in LRTI symptoms; (2) complete absence of symptoms; (3) decrease in signs; and (4) complete absence of signs. Self-reported response included the decrease in symptoms and the time until resumption of impaired or abandoned daily activities on days 1 through 10, 21, and 27.

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The in vitro susceptibilities of Bartonella (Rochalimaea) henselae, B. quintana, B. elizabethae, Rickettsia akari, R. conorii, R. prowazekii, and R. rickettsii to different concentrations of azithromycin, clarithromycin, dirithromycin, erythromycin, and roxithromycin in Vero cell cultures were evaluated. Bartonella and Rickettsia spp. were allowed to initiate infection of the antibiotic-free Vero cell monolayers, which were maintained in 16-chamber microscope slides in the absence of antibiotics at 32 degrees C in a CO2-enriched atmosphere. The monolayers were then incubated for 3 h to allow for initial host cell intracellular penetration by infecting species. After inoculation, inocula were replaced and tested with media containing 12 different concentrations of each antibiotic in replicate (10 wells of each antibiotic dilution) for each species, and the monolayers were reincubated. Tetracycline served as the control. Growth status of Bartonella spp. and Rickettsia spp. was determined by evaluation of immunofluorescent staining bacilli. Five days later, when antibiotic-free, control-infected cell monolayers demonstrated significant fluorescence, media were removed for all cell monolayers, the monolayers were fixed, and all specimens were stained with standard indirect immunofluorescent antibody reagents. Fluorescent foci were enumerated by counting such foci on random fields visualized with an epifluorescence microscope. The extent of antibiotic-induced focus inhibition was recorded for each dilution of antibiotic and compared with that of an antibiotic-negative control. Effective antibiotic dilution endpoints for inhibition of Bartonella and Rickettsia proliferation, as judged by absence of increase of significant fluorescence (as compared with no-growth controls), were enumerated by determining the number of cell culture chambers at various antibiotic dilutions that were negative or positive for significant Bartonella- or Rickettsia-specific fluorescence. All of the macrolide agents tested were readily active against all three Bartonella organisms, and azithromycin, clarithromycin, and roxithromycin may have potential in the treatment of Rickettsia infections. Animal model-based clinical trials are warranted to define the specific treatment role of the newer macrolide antibiotics.

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To study the relationship between endocervical mycoplasma infection and the spontaneous abortion due to the early embryonic death and the drug sensitivity to mycoplasma.

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roxitromicina 150 mg 2015-09-02

The actions of glucocorticoids Clarix Medicine at the feto-maternal interface are not well understood. Here, we show that decidualization of human endometrial stromal cells (HESCs) in response to progesterone and cAMP signaling is associated with a strong induction of 11β-hydroxysteroid dehydrogenase type 1 (11βHSD1) expression and enzyme activity. Decidualization also triggered a gradual decrease in glucocorticoid receptor (GR) expression and reciprocal increase in mineralocorticoid receptor (MR) levels. Gene expression profiling of differentiating HESCs after small interfering RNA (siRNA)-mediated knockdown of either GR or MR identified 239 and 167 significantly regulated genes, respectively. Interestingly, GR-repressed genes were enriched for Krüppel-associated box domain containing zinc-finger proteins, transcriptional repressors involved in heterochromatin formation. In agreement, GR knockdown was sufficient to enhance trimethylated H3K9 levels in decidualizing cells. Conversely, we identified several MR-dependent genes implicated in lipid droplet biogenesis and retinoid metabolism. For example, the induction in differentiating HESCs of DHRS3, encoding a highly conserved enzyme that catalyzes the oxidation/reduction of retinoids and steroids, was enhanced by aldosterone, attenuated in response to MR knockdown, and abolished upon treatment with the MR antagonist RU26752. Furthermore, we demonstrate that decidualization is associated with dynamic changes in the abundance and distribution of cytoplasmic lipid droplets, the formation of which was blocked by RU26752. In summary, progesterone drives local cortisol biosynthesis by decidual cells through induction of 11β-hydroxysteroid dehydrogenase type 1 (11βHSD1), leading to transcriptional regulation of distinct GR and MR gene networks involved in epigenetic programming and lipid and retinoid metabolism, respectively.

roxitromicina 300 mg prospect 2015-05-20

A novel class of polyurethane-polyurea nanoparticles (PUUa NPs) to install multifunctionality on biomaterials is presented. Biofunctionalization of titanium with roxithromycin loaded RGD-decorated PUUa NPs results in an outstanding improvement of osteoblast adhesion and strong suppression Novamox 125 Tablet of bacterial attachment. This strategy represents a powerful approach to enhance the osseointegration of implant materials.

roxitromicina 300 mg bula 2017-10-28

The skin penetration of roxithromycin was studied in 27 surgical patients treated with 300 mg orally followed by three oral doses of 150 mg 12-hourly. Peak plasma and skin concentrations of 7.9 +/- 1.2 mg/l and 31.3 +/- 3.7 mg/kg occurred Azithromycin 2gm Single Dose 2.5 and 4 h after last dosing respectively. The plasma and skin half-lives were 7.7 and 6.0 h, and the mean plasma and skin area under the curve values were 64.3 mg/l.h and 155.3 mg/kg.h. Skin/plasma concentration ratios were 4.9 +/- 0.5, 9.7 +/- 1.2, 7.6 +/- 0.8 and 5.9 +/- 1.1, at 3, 4, 5 and 6 h after last dosing respectively. These results demonstrate that roxithromycin achieves high levels in human skin.

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A-56268 was compared with erythromycin, roxithromycin (RU 28965), and perorally administered antimicrobial agents. Its in vitro activity was similar to that of erythromycin and slightly greater than that of roxithromycin, with beta-hemolytic streptococci and Streptococcus pneumoniae inhibited Denvar Cefixima Suspension 100 Mg by less than 2 micrograms of A-56268 per ml (50% inhibited by 0.06 microgram/ml). Streptococcus pyogenes, S. agalactiae, S. Pneumoniae, and S. faecalis resistant to erythromycin were resistant to A-56268, and 4 micrograms/ml inhibited 90% of Haemophilus influenzae isolates.

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The new macrolide antibiotics appear to offer an improvement over erythromycin. Definitive conclusions about the role of these drugs should await completion Cefdinir Overdose Amount of ongoing clinical studies.

roxitromicina antibiotic 2016-11-29

This prospective open study was conducted Azithromycin 250 Mg Dosage Std in one center and included immunocompetent patients with bacterial dermophypodermitis without signs of toxicity or local manifestations suggesting necrotizing fasciitis. Bacteriology tests included direct immunofluorescence for streptococcus (groups A, C, G) on skin biopsies of the lesion before treatment. Patients were treated with pristinamycin (Pyostacine 500, 3 g/day until 10 days after apyrexia), and evaluated clinically on day 0, 2, 6, 8, and 15. Overall treatment effect was assessed on day 15.

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The rat model of bronchial asthma was established. Electron Bactoclav 375 Mg Tablets microscope was employed to observe the status of caveolae and light microscope for the histological changes in pulmonary tissues. The primarily cultured ASMCs were divided into 5 groups: control (group A), asthmatic ASMCs (group B), PD98059 (group C), roxithromycin (group D) and methyl-β-cyclodextrin (group E). Cell proliferation was detected by Cell Counting Kit-8 (CCK-8). And the expressions of caveolin-1, extracellular regulated protein kinases (ERK) and monocyte chemotactic protein (MCP)-1 were detected by Western blot and reverse transcription polymerase chain reaction (RT-PCR).

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New, clean water wells were drilled under local supervision for each of 26 identified villages. All people living in villages near the wells were screened for trachoma and then treated with antibiotic if required. Education on personal and environmental hygiene was provided by trained volunteers. Patients affected by trichiasis and corneal scarring received surgery, locally if possible. Attempts to control fly populations by cleaning villages, penning livestock, and digging latrines were undertaken. This was performed under advisement and consultation with local villagers and government officials. Data was collected on variables normally associated with trachoma and Cravit 250 Mg Side Effects others relating to demographics, water quality, environment and hygiene.

roxitromicina y alcohol 2016-07-02

The incidence of fever was 82.6% in the AP group and 91.6% in the control group (p = 0.15). Though classification and sites of infections showed no difference between the two groups, the catheter associated infection occurred more frequently in the AP group in significance. The time interval between initiation of chemotherapy and onset of fever, white blood cell (WBC) count at the onset of fever, duration of leukopenia (WBC < 1,000/mm3), duration of systemic antibiotic therapy, mortality due to infection and hospitalization period from the data starting chemotherapy showed no differences between the two groups. Infections due to gram negative bacteria decreased to 33.3% in the AP group (vs. 92% in the control group), but infections due to Levofloxacino Con Alcohol gram positive bacteria increased to 66.7% (vs. 8% in the control group). Gram negative bacteria showed 100% resistance to ciprofloxacin in the AP group and gram-positive bacteria showed 90-100% resistance to erythromycin, regardless of the presence of AP.