Doxycycline 100mg


  • Composition: Doxycycline
  • Strength: 100mg
  • Strip of: 10 Tablets
  • Administration: Orally Tablets
  • Licensed: US FDA Approved
  • Storage: Store below 30°C

Doxycycline belongs to the class of medications called tetracyclines and it is used to treat infections caused by bacteria. It is also used as an antibiotic for certain parasites. Doxycycline is the preferred drug for an important group of illnesses that can be treated with antibiotics, including anthrax disease, Lyme disease, cholera, and acne.

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Doxycycline is antibiotic for Acne true

Doxycycline is a broad-spectrum antibiotic belonging to the tetracycline drug class. It works by preventing bacteria from creating essential proteins. Without these proteins, the bacteria will die.

Doxycycline is used to treat many kinds of infections, like bladder infections, sexually transmitted diseases (STDs), and certain kinds of acne.

When to use the Doxycycline 100 mg Capsule?

  • Due to its long half-life, doxycycline hyclate is useful in the treatment of chronic infections such as Lyme disease.
  • This drug is also widely used to treat respiratory tract infections due to its rapid action against the infectious agent.
  • It is also commonly used as prophylactic therapy for malaria due to its ability to eliminate P. falciparum strains that would otherwise cause a clinical infection.
  • Sometimes it is also used to treat sexually-transmitted diseases such as chlamydia, gonorrhea, chancroid, and syphilis
  • It also treats infections caused by ticks, mites, or fleas


Doxycycline has impressive bacteriostatic potential, inhibiting bacterial protein synthesis by binding to the 30S ribosomal subunit. Adults who take a 300mg single dose will reach peak plasma doxycycline levels at 3 hours post-administration. Those concentrations taper off until 24 hours later when they measure 1.18 mcg/mL in average patients and are lower still if taken with milk or other high-fat foods as part of a meal than under fasted conditions (24% for C; 15% AUC).

Tetracyclines show a strong affinity for the biliary system, where it’s secreted in high concentrations and maintain their active form. Through renal excretion, up to 40% of Doxycycline is removed from the body within 72 hours by those individuals with 75 mL per minute creatinine clearance. Those with lesser levels may experience a 1-5% removal rate over similar periods – making tetracyclines an indispensable tool against bacterial infection.


Carry on taking this medicine until you’ve completed the course, even if you feel better. If you stop your treatment early, the infection could come back.

Dosage and administration:

Doxycycline is a widely-used antibiotic for treating more severe infections, with the usual dose of 200 mg on day one and 100 mg daily as maintenance. For acne vulgaris treatment, It should be administered at 50mg once daily over 3 or 4 months to achieve maximum improvement. 

Children aged eight years or above (or weighing 45 Kg or less) require an initial dosage of 4.4 mg/Kg followed by 2.2mg/Kg per day during their prescribed course of medication.

Dosage for Acne Treatment

Side-effects of Doxycycline 100 MG

  • A feeling of confusion
  • Tired feeling
  • Constipation or diarrhea, or more frequent bowel movements
  • Diarrhea stops after a few days
  • Feeling weak or tired
  • Dizziness when you stand up fast
  • Dizziness, lightheaded feeling when you change positions (going from sitting to standing, lying down to standing)
  • Trouble holding your urine or a painful burning feeling when you urinate8. Feeling nervous

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Warnings and precautions:

It has been noted to form a stable complex in bone-forming tissue but binds calcium less strongly than Tetracycline when studied in vitro. Tooth discolouration may occur from Doxycycline use during critical development periods such as the last trimester of pregnancy, neonatal period, and early childhood. However, this effect is more commonly associated with long-term usage. It can result from short-term treatment too. Photodynamic reactions due to direct sunlight exposure have also been observed among hypersensitive individuals taking this medication.

Tetracycline is a powerful antibiotic and must be cautiously administered to those prone to photosensitivity reactions. To ensure safety, exposure to direct sunlight should be avoided during treatment and at the first sign of skin discomfort. Due to antibiotics’ potential for fostering resistant infections, close monitoring by healthcare professionals is recommended in case action needs to be taken quickly if one does arise.

Use in pregnancy and lactation:

It is not recommended for usage during pregnancy or breastfeeding, as its potential benefits do not outweigh the possible effects on the mother and child. Tetracyclines also risk being excreted in breast milk, so lactating mothers better avoid it.

To ensure optimal safety, Doxycycline should only be administered to newborns, infants, and children under eight years of age once safe conditions are adequately established. Research has revealed that the oral intake of Tetracyclines can impede proper bone formation in premature infants; however, this side effect was found reversible upon discontinuation of the drug.

Drug interactions:

Doxycycline should be administered with special care to patients taking oral anticoagulants. As Tetracycline’s have been known to lower plasma prothrombin activity, those on anti-coagulation treatment may need a decrease in their daily dosage of the drug.

Cost of Doxycycline hyclate?

The medication can be purchased at the pharmacy over-the-counter or with a prescription from your doctor. The typical cost for a 5 day supply of doxycycline hyclate ranges from $7 to $134 depending on the pharmacy you use. But Using you buy the Doxycycline 100 mg at discounted price.

Tips for taking Doxycycillin
  • Taking Doxycycline hyclate for a long time will cause your red blood cells, white blood cells, and platelets to decrease. Let your doctor know if this is a concern for you.
  • Take each dose with a full glass of water. Avoid cutting, crushing, or chewing this medication. Doing so can release all of the drug at once, increasing the risk of side effects. If you have difficulty swallowing the tablet whole, add a little liquid to it before taking it. Swallow the mixture right away without chewing
  • Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
  • Do not take any other medication or have any medical procedures within 1 hour of taking Doxycycline
  • If you are a female who is planning to get pregnant or is already pregnant, talk to your doctor about other forms of treatment. Tell your doctor about all medications and supplements you use.
  • There is a potential risk of increased sensitivity to sunlight, called photosensitivity reaction that may be associated with the administration of tetracyclines, including doxycycline hyclate. Avoid excessive exposure to sunlight and sunlamps. Use a sunscreen with a high protection factor (SPF 30 or higher), wear wide-brimmed hats or other protective clothing, and limit the time you spend in sunlight. Do not use sun lamps or tanning beds/booths.
FAQs about Doxycycline

Doxycycline is generally not prescribed for children under the age of 8 years, as it can affect the development of teeth and bones. However, there are specific situations where Doxycycline may be used in children under the guidance of a pediatric specialist. Always consult a healthcare provider for appropriate dosing and treatment options for children.

Doxycycline may reduce the effectiveness of hormonal contraceptives, such as birth control pills. It is recommended to use additional non-hormonal contraceptive methods, such as condoms, while taking Doxycycline and for a few days after completing the course of treatment. Consult your healthcare provider for specific recommendations.

Yes, Doxycycline can be used as a prophylactic medication to prevent malaria in certain regions where the malaria parasite is susceptible to the drug. It is important to consult with a healthcare provider or travel medicine specialist to determine the appropriate malaria prevention strategy for your specific destination

Doxycycline is an antibiotic that can disrupt the natural balance of bacteria in the body, which may increase the risk of yeast infections, such as vaginal yeast infections or oral thrush. If you develop symptoms of a yeast infection while taking Doxycycline, it is important to consult your healthcare provider for appropriate treatment.

Antacids and medications for acid reflux (GERD) containing aluminum, magnesium, or calcium can reduce the absorption of Doxycycline and decrease its effectiveness. If you need to take antacids or acid reflux medications while on Doxycycline, it is generally recommended to take them at least two hours apart.

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