Patient Information: Summary of Product Characteristics
Vibracina 100 mg Hard Capsules
Doxycycline
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
Vibracina contains doxycycline, an antibiotic belonging to a group of medicines called tetracyclines.
Antibiotics are used to treat bacterial infections and are not effective against viral infections. It is essential to follow the instructions regarding dosage, administration interval, and treatment duration as indicated by your doctor. Do not store or use this medicine. If you have any leftover antibiotic after completing the treatment, return it to the pharmacy for proper disposal. Do not dispose of medicines via wastewater or household waste. |
This medicine is used in adults, adolescents, and children over 8 years of age for:
Do not take Vibracina
Warnings and precautions
Consult your doctor or pharmacist:
Children and adolescents
In children from birth to 8 years of age, the use of Vibracina is not recommended because it can cause permanent tooth discoloration and delayed bone development. However, there may be situations (e.g., severe or potentially life-threatening diseases) in which your doctor may decide that the benefits outweigh this risk in children under 8 years of age, and doxycycline may be prescribed.
In children over 8 years and under 12 years (up to 45 kg in weight), see section 3. There is another presentation in the form of an oral suspension that could be more suitable depending on the dose and patient.
In children over 12 years (over 45 kg in weight), the same dose as in adults is recommended (see section 3).
Taking Vibracina with other medicines
Inform your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Certain medicines may interact with Vibracina. In these cases, it may be necessary to change the dose or interrupt treatment with one of the medicines. It is especially important to inform your doctor if you are using any of the following medicines:
Taking Vibracina with food, drinks, and alcohol
You should avoid consuming alcohol during treatment with this medicine, as alcohol reduces the effect of Vibracina.
Pregnancy and breast-feeding
If you are pregnant or breast-feeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking any medicine.
Pregnancy
The use of this medicine is not recommended during pregnancy, as it may cause disorders in bone development and permanent tooth discoloration in the child. Your doctor will decide whether to use Vibracina in these cases.
It is essential to use contraceptive methods during treatment with doxycycline to avoid becoming pregnant. Hormonal contraceptives may not be effective, as taking this medicine reduces the contraceptive effect, and therefore, barrier methods are recommended.
Breast-feeding
The use of this medicine should be avoided during breast-feeding, as it may cause disorders in bone development and permanent tooth discoloration in the infant.
Driving and using machines
There is no evidence that doxycycline alters the ability to drive or use machines.
Important information about some of the ingredients of Vibracina
Vibracina contains lactose and sodium.
If your doctor has told you that you have an intolerance to some sugars, consult them before taking this medicine.
This medicine contains less than 23 mg of sodium (1 mmol) per capsule; it is essentially "sodium-free".
Follow the administration instructions for this medication exactly as indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again. Your doctor will indicate the duration of treatment with this medication. Do not suspend treatment until your doctor indicates it, even if you have started to improve.
Remember to take your medication. It is essential to take this medication regularly, at the same time every day.
Adults and Adolescents (12 years to less than 18 years of age)
The usual dose of doxycycline is 200 mg on the first day of treatment (administered in a single dose or divided into two doses every 12 hours), followed by a maintenance dose of 100 to 200 mg/day depending on the severity of the infection (administered in a single dose or divided into two doses every 12 hours). Treatment should continue until at least 24 to 48 hours after the disappearance of symptoms and fever.
The dose will be established by the doctor based on individual characteristics and the type of infection. As a general rule, the usual dose and frequency of administration are as follows:
Indication | Dosing Regimen | Duration of Treatment |
Non-gonococcal urethritis, cervicitis, and proctitis | 100 mg of doxycycline every 12 hours. An antimicrobial with an adequate spectrum should be administered, preferably in a single-dose regimen. | For at least 7 days. |
Lymphogranuloma venereum | 100 mg of doxycycline every 12 hours. | For at least 21 days. |
Ingual granuloma (donovanosis) | ||
Pelvic inflammatory disease | Outpatient patients: 100 mg of doxycycline orally every 12 hours combined with one of the following medications:
Hospitalized patients: 100 mg of doxycycline intravenously every 12 hours, combined with one of the following medications:
Continue with 100 mg of doxycycline orally every 12 hours until treatment is completed. | For 14 days. |
Syphilis in patients allergic to penicillin, except for pregnant women | 100 mg of doxycycline every 12 hours. | For 2 weeks. In the case of late and latent syphilis, if it is known that the duration of the infection has been more than one year, the duration of treatment should be 4 weeks. |
Acute epididymo-orchitis | 100 mg of doxycycline every 12 hours along with ceftriaxone 250 mg in a single dose. | For 10 days. |
Brucellosis | 100 mg of doxycycline every 12 hours. | For 6 weeks. Along with streptomycin intramuscularly for 2-3 weeks. |
Cholera | 300 mg of doxycycline. | Single dose. |
Lyme disease (early stages 1 and 2) | 100 mg of doxycycline orally every 12 hours. | For 10-60 days, depending on clinical signs and symptoms and response. |
Recurrent fevers transmitted by lice and ticks | 100 mg or 200 mg of doxycycline depending on severity, or | Single dose. |
Alternatively, in the case of tick-borne recurrent fever, 100 mg of doxycycline can be administered every 12 hours. | For 7 days as an alternative to reduce the risk of persistence or relapse of tick-borne fever. | |
Treatment of chloroquine-resistant malaria | 200 mg of doxycycline daily. | For at least 7 days. |
Treatment of cutaneous, intestinal, or pulmonary anthrax | 100 mg of doxycycline every 12 hours initially intravenously and continue with the same dose orally, as soon as deemed appropriate. | For 60 days, except in the case of cutaneous anthrax without systemic involvement, in which case the duration of treatment may be reduced to 7-10 days. |
Severe acne vulgaris | 50-100 mg of doxycycline per day. | For 12 weeks. |
Rocky Mountain spotted fever | 100 mg of doxycycline every 12 hours | Until at least 3 days after fever disappears and until there is evidence of clinical improvement. The duration of treatment should be at least 5-7 days. |
Malaria prophylaxis | 100 mg of doxycycline daily. | Prevention should begin 1-2 days before traveling to endemic areas. Continue this dosing regimen during travel in the endemic area and for 4 weeks after leaving the endemic area. |
Prophylaxis of anthrax after exposure to bacteria causing this disease | 100 mg of doxycycline every 12 hours. | For 60 days. |
(1) Due to the potential severity of the infection, a rapid-acting antimalarial such as quinine should always be administered in combination with doxycycline. Quinine dosage recommendations vary in different geographic areas.
(2) Doxycycline is the treatment of choice
There are different doses available for different dosing regimens.
Pediatric population
Children from 8 years to less than 12 years of age
Doxycycline should be used for the treatment of acute infections in children from 8 to less than 12 years of age, in situations where other medications are not available or may not be effective or are contraindicated.
In these cases, the usual doses are:
First day: 4.4 mg/kg of weight (administered in a single dose or divided into two equal doses every 12 hours)
From the 2nd day onwards: 2.2 mg/kg of weight (in a single dose or divided into two equal doses). The duration of treatment will depend on the infection being treated.
In more severe infections, a dose of up to 4.4 mg per kg of body weight may be administered throughout treatment.
There is another presentation, in the form of an oral suspension, which could be more suitable for dose adjustment for children weighing ≤ 45 kg.
The same dose as in adults is recommended, 200 mg on the first day and then 100 mg daily. The duration of treatment will depend on the infection being treated.
Newborns, infants, and children under 8 years of age
Doxycycline should not be used in children under 8 years of age due to the risk of tooth discoloration.
The dosage in pediatric patients for the treatment or prophylaxis of specific infections is:
Elderly patients
No dose adjustment is necessary.
Patients with renal impairment
Doxycycline does not require dose adjustment in patients with renal function impairment.
Patients with hepatic impairment
Doxycycline should be administered with caution in patients with hepatic function impairment.
Method of administration
Oral route.
This medication should be taken during a meal, accompanied by a large glass of water or milk. It is essential that after taking the medication, you wait at least one hour before lying down or going to bed. The above recommendations aim to prevent the appearance of digestive problems, especially esophageal ulcers. |
If you take more Vibracina than you should
Information for healthcare professionals: In case of overdose, administration should be discontinued, and symptomatic treatment and supportive measures should be initiated.
Peritoneal dialysis does not alter the plasma elimination half-life and, therefore, would not be beneficial in the treatment of overdose.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medication and the amount ingested.
If you forget to take Vibracina
If you forget to take a dose, take the next one at the usual time. Do not take a double dose to make up for forgotten doses.
Like all medications, this medication can cause adverse effects, although not all people experience them.
If you experience any of the following adverse effects, talk to your doctor as soon as possible:
The following adverse effects have been observed in patients who have taken tetracyclines, including doxycycline, ordered by their frequency of occurrence:
Frequent adverse effects (may affect up to 1 in 10 people):
Hypersensitivity, allergic reactions (including anaphylactic shock, anaphylactic and anaphylactoid reactions, angioedema, exacerbation of systemic lupus erythematosus, pericarditis, serum sickness, Schönlein-Henoch purpura, hypotension, dyspnea, tachycardia, peripheral edema, urticaria, headache, nausea, vomiting, exaggerated skin reaction to sunlight or ultraviolet radiation, skin rash (including erythematous and maculopapular).
Uncommon adverse effects (may affect up to 1 in 100 people):
Gastrointestinal disorders (heartburn/gastritis).
Rare adverse effects (may affect up to 1 in 1,000 people):
Increased destruction of red blood cells (hemolytic anemia), decreased platelet count (thrombocytopenia), alteration of white blood cell count: decreased neutrophil count (neutropenia) or increased eosinophil count (eosinophilia), drug rash with eosinophilia and systemic symptoms [DRESS, which includes skin rash, lymph node inflammation, and elevated eosinophils (a type of white blood cell)], brown-black microscopic discoloration of the thyroid gland, decreased appetite, possible symptoms of benign intracranial hypertension (increased pressure inside the skull) including headache, nausea, vomiting, visual disturbances (including blurred vision) and dizziness, bulging fontanelle (transitory bulging of the non-ossified space in the skull in young children), localized defect in the visual field surrounded by a normal vision area (scotoma), double vision (diplopia) and possible vision loss, in some cases even permanent, tinnitus (ringing in the ears), facial flushing (rubefaction), pancreatitis, alteration in stool volume or consistency (diarrhea, pseudomembranous colitis), esophageal ulcers, esophagitis, intestinal inflammation, inflammatory lesions in the anogenital area, difficulty swallowing (dysphagia), abdominal pain, tongue inflammation (glossitis), tooth color change, liver function alteration, hepatitis, and liver damage, toxic epidermal necrolysis, severe skin and mucous membrane inflammation (Stevens-Johnson syndrome), erythema multiforme, widespread skin inflammation with exfoliation (exfoliative dermatitis), round or oval patches with redness and swelling of the skin, blister formation (urticaria) and itching, which usually reappear in the same places with re-exposure to the medication (fixed drug eruption), skin darkening, nail loss (photo-onycholysis), joint pain (arthralgia) and muscle pain (myalgia), increased blood urea.
Adverse effects of unknown frequency (cannot be estimated from available data):
Discoloration and/or lack of tooth growth.
Reporting of adverse effects
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: www.notificaRAM.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medication.
Keep this medication out of sight and reach of children.
Store below 30°C. Store in the original packaging.
Do not use this medication after the expiration date shown on the packaging after CAD. The expiration date is the last day of the month indicated.
Medications should not be thrown away through wastewater or household waste. Deposit the packaging and medications you no longer need at the SIGRE Point in the pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. This way, you will help protect the environment.
Vibracina composition
Product appearance and package contents
Vibracina is presented in the form of hard capsules of dark green color with the word "Pfizer" printed in white on the cap and the word "Vibracina" printed in white on the body of the capsule.
Each package contains 14 capsules packaged in a cardboard box.
Marketing authorization holder and manufacturer
Marketing authorization holder
Hospira Invicta, S.A.
Avda de Europa, 20 B
Parque Empresarial La Moraleja
28108, Alcobendas (Madrid).
Manufacturer
Farmasierra Manufacturing S.L.
Ctra. de Irún, km 26, 200
28700, San Sebastián de los Reyes. Spain
You can request more information about this medication by contacting the local representative of the marketing authorization holder:
Pfizer, S.L. Avda. de Europa, 20-B. Parque Empresarial La Moraleja. 28108, Alcobendas. Spain.
Date of the last revision of this leaflet: 06/2024.
Detailed and updated information about this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es.
The average price of VIBRACINA 100 mg HARD CAPSULES in October, 2025 is around 2.5 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.