Rulid® (Roxithromycine)
(US) $19.99


Rulid Antibiotics fight a host of bacterial infections

Rulid target a wide range of bacterial infections and are commonly used to treat respiratory tract conditions such as acute bronchitis, tonsillitis and pneumonia. Rulid also combats bacterial infections in the body’s genitals, gastrointestinal tract and soft tissues.

What is Rulid?

Rulid acts as a bacteria fighting antibiotic. In common with other antibiotics, Rulid targets bacterial infections rather than viruses, so is not recommended for viral infections.

Rulid belongs to a group of antibiotics known as macrolides. It shares characteristics with other macrolide drugs including erythromycin, azithromycin and clarithromycin. Macrolide antibiotics such as Rulid fight bacterial infections by blocking the proteins at the heart of bacteria growth. They also act to kill bacteria directly (becoming what is termed as ‘bactericidal’) if the bacteria presence is high enough.

One of the reasons why macrolides are so effective in the treatment of bacterial infections is due to their propensity to form in the body’s white blood cells (leukocytes). White blood cells are an integral part of our immune system, ensuring that the macrolides are in a prime position to fight any bacterial infections.

What are bacteria?

Bacteria are omnipresent in the world. They are microscopic cells present in air, water, food, plants, people and animals that are vital to life, but can also cause infection and disease. Bacteria cells are classified as prokaryotic -a primitive, single cell structure without a nucleus or membrane. This sets them apart from human eukaryotic cells, which are more complex, multi-cellular structures.

The effectiveness of Rulid is directly linked to the differing characteristics of human eukaryotic cells and bacteria cells.

Eukaryotic and bacteria cells both contain a key protein-creating component known as ribosome. As a macrolide drug, Rulid act to kill bacteria by inhibiting the production of these ribosomes. But human eukaryotic cells are not affected by macrolide antibiotics, leaving their ribosomes intact.

What conditions does Rulid treat?

Rulid is used to target a variety of bacterial infections -including those affecting the respiratory tract, genitals, gastrointestinal tract and the body’s soft tissues. Specific conditions where Rulid treatment can help ranges from sore throats and difficulties with swallowing, through acute bronchitis, tonsillitis, sinusitis and pneumonia, to certain sexually transmitted diseases, gum infections like gingivitis, and skin infections such as impetigo -skin sores caused by bacteria.

As is the nature of antibiotics, they are only effective against particular strains of bacteria. This is true for macrolide antibiotics such as Rulid , which target the following bacteria strains:

    • Chlamydia trachomatis: affecting the eyes and urogenital areas of both men and women;
    • Listeria monocytogenes: a virulent strain of bacteria carried in food;
    • Helicobacter: bacteria leading to inflammation of the stomach lining and associated with ulcers and the development of stomach cancer;
    • Ureaplasma urealyticum: bacteria that are a normal part of the genital flora of both sexes, but also associated with conditions such as infertility, still and premature birth, and non-specific urethritis (NSU);
    • Gardnerella vaginalis: bacteria that causes infection of the female genital tract;
    • Haemophilus Ducreyi: a bacteria strain responsible for chancroid -a sexually transmitted disease characterised by genital sores;
    • Streptococcus agalactiae: bacteria that can cause serious and even fatal infections in newborn babies;
    • Streptococcus pneumoniae: a cause of bacterial meningitis and infections such as enocarditis, cellulitis, peritonitis, and acute sinusitis;
    • Neisseria meningitides: bacteria that can cause meningococcal meningitis and meningococcal septicaemia;
    • Mycoplasma pneumoniae bacteria leading to the condition of the same name;
    • Bordetella pertussis: bacteria that can cause whooping cough;
    • Moraxella Catarrhalis: bacteria responsible for infections associated with the respiratory tract;
    • Legionella pneumophila: bacteria that can lead to Legionnaire’s disease.

Taking Rulid

A typical Rulid dosage is one 150mg tablet taken twice a day. Rulid is well tolerated with few side effects. Although rare, side effects may stem from the gastrointestinal area -such as diarrhoea, abdominal pain and vomiting. Less common side effects include headaches, rashes and changes in the senses of smell and taste.

Rulid is a safe and effective antibiotic that targets a slightly wider range of bacteria than penicillin. Rulid is an important ally in the fight against the bacteria that have proven difficult to treat in past.



Equip your body to fight off bacterial infections with Rulid

Rulid is part of a group of antibiotics called macrolides. These special types of bacterial fighter work by blocking the proteins that harmful bacteria use to grow and multiply.

Rulid is so powerful that if the bacteria are in enough proliferation, it actually kills the bacteria directly -meaning it’s ‘bactericidal’. Using the body’s defence system of white blood cells, the antibiotics in rulid form in these natural defences. They’re then in the perfect position to be employed in bolstering the immune system.

To treat bacteria infection of the respiratory tract, a Rulid dosage -also known as Rulid -Roxithromycin -is usually prescribed. As well as Rulid -Roxithromycin being used for acute bronchitis, tonsillitis and pneumonia, it’s also used to treat infections of the gastrointestinal tract and the body’s soft tissues.

Antibiotics should only be used when prescribed by your doctor, so it’s important to check to see whether you require them for a certain condition. Side effects are seldom experienced with Rulid and it’s proven itself to be handy weapon to fight off serious infections.

Chemical: Roxithromycin(e)


Roxithromycin (e)


Polioxyethylene–polioxypropylene co-polymer, polyvinyl pyrrolidone, hydroxypropyl cellulose, precipitate silica, corn starch, magnesium stearate, talc, propylene glycol, anhydrous glucose, methylhydroxypropyl cellulose, titanium dioxide.

Adverse Effects and Precautions:

Gastro-intestinal disturbances are the most frequent adverse effect, but are less frequent than with erythromycin. A case of cholestatic hepatitis has been reported. Rashes, headache, dizziness, weakness and changes in blood cell counts have also occurred. Acute pancreatitis, with duodenal inflammation, pain, pancreatic enlargement and raised serum-amylase developed within 24 hours of substitution of roxithromycin for erythromycin ethyl succinate in a patient being treated for respiratory tract infection. Symptoms resolved rapidly once roxithromycin was withdrawn. Souweine B, et al. Acute pancreatitis associated with roxithromycin therapy. DICP Ann Pharmacother 1991- 25: 1137.

Antimicrobial Action and Resistance:

It is reported to be as active or slightly less active than erythromycin. MICs for the most sensitive strains range from about 0.03 to 1 mcg per ml but organisms with MICs up to about 2 mcg per ml are generally considered sensitive.


Following oral administration roxithromycin is well absorbed, with peak concentrations of about 6 to 8 mcg per ml occurring around 2 hours after a single dose of 150 mg. Absorption is reduced when taken after, but not before, a meal. It is widely distributed in tissues and body fluids. It is reported to be about 96% bound to plasma protein (mainly alpha (1)-acid glycoprotein) at trough concentrations, but binding is saturable, and only about 86% is bound at usual peak concentrations. Small amounts of roxithromycin are metabolized in the liver, and the majority of a dose is excreted in the faeces as unchanged drug and metabolites- about 7 to 12% is excreted in urine, and up to 15% via the lungs. The elimination half-life is reported to range between about 8 and 13 hours, but may be more prolonged in children. References. 1. Puri SK, Lassman HB. Roxithromycin: a pharmacokinetic review of a macrolide. J Antimicrob Chemother 1987- 20 (suppl B): 89-100. 2. Periti P, et al. clinical pharmacokinetic properties of the macrolide antibiotics: effects of age and various pathophysiological states (part II). Clin Pharmacokinet 1989- 16: 261-82.

Uses and Administration:

Roxithromycin is a macrolide antibiotic with actions and uses similar to those of erythromycin. It is given by mouth in a dose of 150 mg twice daily before meals, in the treatment of susceptible infections. 1. Phillips I, et al., (eds). Roxithromycin: a new macrolide. J Antimicrob Chemother 1987- 20 (suppl B): 1-187. 2. Young RA, et al. Roxithromycin: a review of its antibacterial activity, pharmacokinetic properties and clinical efficacy. Drugs 1989- 37: 8-41. Correction. ibid.,3. Bahal N, Nahata MC. The new macrolide antibiotics: azithromycin, clarithromycin, dirithromycin, and roxithromycin. Ann Pharmacother 1992- 26: 46-55.

Lyme Disease:

Roxithromycin has been reported to be of benefit in patients with late-stage symptoms (neuroborreliosis, (1) arthritis (2)) of Lyme disease, given in combination with co-trimoxazole, although the contribution of the latter is uncertain. (3) 1. Gasser R, Dusleag J. Oral treatment of late borreliosis with roxithromycin plus co-trimoxazole. Lancet 1990- 336: 1189-90. 2. Pedersen LM, Friis-Moller A. Late treatment of chronic Lyme arthritis. Lancet 1991- 337: 241. 3. Bowman CA. Oral treatment of late borreliosis with roxithromycin plus co-trimoxazole. Lancet 1990- 336: 1514.

The above information is the translation of the manufacturer’s insert. It is provided under the supplying company’s terms and conditions and should not replace the advice of your personal physician.