• Names: Doxycycline
  • Dosage: 100mg
  • Price: $0.35 per pill

Doxycycline is an oral antibiotic that fights bacteria in the body. It is used to treat many different bacterial infections. Its dose depends on why you are taking it.

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What is Doxycycline and how does it work?

Doxycycline is a broad-spectrum antibiotic. This drug is a second-generation tetracycline.

The drug is active against gram-positive microorganisms – Staphylococcus spp. (including Staphylococcus aureus, including penicillinase producing strains), Streptococcus spp. (including Streptococcus pneumoniae), Listeria monocytogenes, Bacillus anthracis, Clostridium spp., Actinomyces israeli; Gram-negative microorganisms – Bordetella pertussis, Escherichia coli, Enterobacter spp., Klebsiella spp., Salmonella spp., Shigella spp., Yersinia spp., Vibrio cholerae, Neisseria gonorrhoeae.

Rickettsia spp., Borrelia burgdorferi, Treponema spp., Chlamydia spp., Mycoplasma spp., Some protozoa (including Plasmodium falciparum, Entamoeba histolytica) are generally susceptible to doxycycline.

Doxycycline_ antibiotic to treat bacterial infections

Haemophilus influenzae (91–96%) and intracellular pathogens are most sensitive to this medicine.

To a lesser extent than other tetracycline antibiotics, it inhibits the intestinal flora, has a more complete absorption and a longer duration of action. This antibiotic is superior to natural tetracyclines in the degree of antibacterial activity. It penetrates into the cell, inhibiting the reproduction of intracellularly located pathogens.

Microorganisms resistant to doxycycline: Pseudomonas aeruginosa, Proteus spp., Serratia spp., Most strains of Bacteroides fragilis, fungi, viruses.

Many patients wonder how long it takes for doxycycline hyclate 100mg to work. Well, If you are taking this drug for any minor infection, you should start feeling better after 3 days.

How much is Doxycycline?

The price of Doxycycline Hyclate 100mg varies from pharmacy to pharmacy. Do not hurry to buy this antibiotic at your local drugstore – compare prices!Usually, you can find cheaper generic options at online pharmacies. Besides, such stores sell medication over the counter. Take your time and search for the most beneficial option. For example, our online pharmacy offers this antibiotic for only $0.45 per pill. This is a very good special offer.

Can I buy Doxycycline over the counter?

If you buy this medicine at your local drugstore, you will need a valid prescription issued by a local health care provider. However, if your budget is limited, if the necessary antibiotic is out of stock, or you cannot go to a store for some reason, you can purchase it at an online pharmacy over the counter. Online pharmacies usually offer drugs at lower prices and many of them specialize on cheaper generic drugs, so you can really save a considerable amount of money. Do not be afraid of ordering drugs online provided that you are using a reliable online pharmacy. Do not forget to check the pharmacy’s reputation on the web – look for some customer reviews. This will help you find out what other people say about this company. In addition, we strictly recommend that you consult your doctor before taking any drugs, especially antibiotics, because self-medication can be dangerous. You need to be sure that medicine you are ordering is the one you really need.

What is Doxycycline used for?

The medicine is used to treat:

The antibiotic is also used to prevent postoperative purulent complications and malaria caused by Plasmodium falciparum during short trips (less than 4 months) in the territory where strains resistant to chloroquine and / or pyrimethamine sulfadoxine are common.


The drug is taken orally. The average daily dose for adults and children over 12 with a body weight of 45+ kg is 200 mg on the first day (divided into 2 doses – 100 mg 2 times a day), then 100 mg / day.

The maximum daily dose for adults is up to 300 mg / day or up to 600 mg / day for 5 days for severe gonococcal infections.

In the presence of severe liver failure, a reduction in the daily dose of doxycycline is required since this gradually accumulates in the body (risk of hepatotoxicity).

Doxycycline_ Smart Use, Best Care

Who cannot use Doxycycline?

Contraindications for use are hypersensitivity, pregnancy (especially II-III trimester), children under 8 years of age, hypersensitivity to tetracyclines, porphyria, severe liver failure, leukopenia, breastfeeding.

Side effects

You should immediately consult a doctor if you have any of the mentioned side effects after taking Doxycycline 100mg. This also applies to any side effects that are not listed on this page.

Compatibility with alcohol

You can not drink alcohol when taking doxycycline pills: the drug interacts with alcohol, the removal of the antibiotic from the body is accelerated and it does not have the expected therapeutic effect.

Moreover, the simultaneous use of alcohol and this antibiotic can cause serious side effects in patients who regularly drink alcohol or are chronic alcoholics. It is strongly not recommended to drink alcohol while taking these pills if you have liver disease.

Compatibility with dairy products

You should wash down the antibiotic with plenty of water. You can’t drink milk and other dairy products. Like all tetracyclines, this drug forms calcium salts with sparingly soluble salts, and there is a lot of calcium in dairy products. In addition, you should not consume dairy products in the next couple of hours after taking the drug.

Use in children

You cannot use this drug to treat children under 12 years of age. The antibiotic can increase the possibility of formation of insoluble complexes with calcium ions (Ca2 +) with deposition in the bone skeleton, enamel and dentin of the teeth. Also, the drug cannot be used in children over the age of 12 weighting less than 45 kg.

This antibiotic is only used in children over the age of 12 with a body weight of more than 45 kg.

Pregnancy and breastfeeding

This medicine is contraindicated for use during pregnancy and lactation. It crosses the placental barrier. It can cause long-term discoloration of teeth, enamel hypoplasia, suppression of bone growth of the skeleton of the fetus, as well as the development of fatty liver.

If it is necessary,to use this antibiotic during lactation, breastfeeding should be terminated.

Impact on contraceptives

Doxycycline reduces the reliability of contraception and increases the frequency of “breakthrough” bleeding against the background of estrogen-containing oral contraceptives. If you are taking this antibiotic, you should use barrier methods of contraception until you complete the course of treatment to avoid pregnancy.

Drug interactions

Avoid taking this antibiotic with any of the following drugs:

Warnings and precautions

Doxycycline Reviews

Almost all Doxycycline reviews avaialable online are positive. Users say that this is an old proven and well-tolerated drug. Most of consumers did not have any side effects. Efficiency and affordable price make this medicine a good antibacterial choice. Users mainly used these pills to treat chronic bacterial foci, infections of the intestine, pelvic organs, and musculoskeletal system. The only negative effect from the treatment was nausea and heartburn, which was easily removed by concomitant medications. Pationts mentioned that it is important to consider contraindications and indications before using this drug.

Many users mentioned that this antibiotic helped them get rid of acne. Watch a video below about how Doxycycline helped Greta Jane fight her acne:

According to online reviews, the drug will help you get rid of many urological infections in a short time. One user recommended to take this antibiotic with bifidobacteria. We also found comments saying that this antibiotic has low toxicity compared to the penicillin series.

Doctor reviews are also available online. Medical specialists have been using this drug for a long time in their practice, and they say these pills are perfect for treating inflammatory processes caused by ureaplasma and mycoplasma. Some of health care providers use this medicine to prevent complications before minor surgical interventions. They say patients easily tolerate this drug and they are satisfied with its price.

According to customer reviews, the drug coped well with the disease in most cases and did not cause a significant violation of the intestinal microflora.