Doxycycline 100mg Capsules - 50 Capsules

Doxycycline 100mg Capsules are an oral tetracycline antibiotic containing doxycycline, supplied here as a 50 capsule pack. The patient leaflet states that doxycycline is used to treat many different types of infections, including chest, lung or nasal infections such as pneumonia and sinusitis, urinary tract infections, skin and soft tissue infections including acne, eye infections, sexually transmitted infections such as chlamydia, gonorrhoea and syphilis, and infections spread by ticks, lice, mites or contaminated water.

The leaflet also notes that doxycycline may be used to help prevent certain infections in specific circumstances, including malaria, travellers’ diarrhoea, scrub typhus and leptospirosis, when prescribed for those purposes. Each 100mg capsule contains doxycycline equivalent to 100mg, presented as doxycycline hyclate.

The same medicines.org.uk leaflet confirms that the 100mg capsules are available in blister packs of 8, 14 and 50 capsules, making this 50-capsule presentation part of the licensed pack range for this product. The capsules are described as unmarked, hard, green coloured capsules.

This is a prescribed antibiotic treatment and should only be used for the condition and duration advised by the prescriber. The leaflet advises that the full course should be taken even if symptoms improve, as stopping early may allow the infection to return. 

Take Doxycycline 100mg Capsules exactly as directed by your doctor, prescriber or pharmacist. The leaflet advises swallowing each capsule with plenty of water, taking it while sitting or standing, and not lying down for at least 30 minutes afterwards. This helps reduce the risk of irritation or ulceration in the throat or food pipe.

For many infections in adults and adolescents aged 12 years to under 18 years, the leaflet lists the usual dose as 200mg on the first day, then 100mg daily. Some infections use different regimens, including 100mg twice daily for 7 to 10 days for certain sexually transmitted infections. The exact dose and course length depend on the infection being treated, so the directions on the dispensing label should always be followed.

For treatment of infections, doxycycline capsules can be taken with or without food. If the capsules upset your stomach, the leaflet says they may be taken with food or milk. For acne treatment, the leaflet specifically recommends taking doxycycline with food or a drink.

If you miss a dose, take it as soon as you remember, then take the next dose at the usual time. Do not take a double dose to make up for a forgotten dose. If too many capsules are taken, seek medical advice straight away and take the medicine pack or leaflet with you.

Active ingredient:

Each capsule contains 100mg doxycycline, equivalent to approximately 115.41mg doxycycline hyclate.

Other ingredients in the capsule contents:

Hypromellose, sodium lauryl sulphate, microcrystalline cellulose, magnesium stearate.

Capsule shell ingredients:

Gelatin and titanium dioxide (E171). The 100mg capsules also contain Brilliant Blue (E133) and Iron Oxide Yellow (E172). 

Like all medicines, Doxycycline 100mg Capsules can cause side effects, although not everybody gets them. The leaflet highlights serious reactions that need urgent medical attention, including difficulty breathing, swelling of the face or lips, severe rash or itching, severe or bloody diarrhoea, severe headache with visual disturbance, widespread blistering skin reactions, and symptoms linked to increased pressure in the brain.

Common side effects listed in the leaflet include feeling sick, being sick, and worsening of systemic lupus erythematosus in affected patients. Other side effects reported in the leaflet include heartburn, difficulty swallowing, sore mouth or tongue, diarrhoea, stomach pain, appetite loss, vaginal infection, flushing, ringing in the ears, inflammation of the bowel, liver problems, jaundice, pancreatic inflammation, skin colour changes, and increased pressure inside the skull. The leaflet also lists a not-known frequency for tooth discolouration and/or lack of tooth growth.

Do not take doxycycline if you are allergic to doxycycline, any other tetracycline antibiotic, or any of the ingredients in the capsules. The leaflet also says it must not be taken if you are pregnant, trying to become pregnant, or breast-feeding, as use during tooth development may cause permanent tooth discolouration and may affect bone or tooth development. It should not normally be used in children below 8 years old, except where a clinician decides the benefits outweigh the risks in severe or life-threatening infections.

Speak to a doctor or pharmacist before taking this medicine if you have kidney or liver problems, myasthenia gravis, porphyria, systemic lupus erythematosus, a history of diarrhoea linked to antibiotics, stomach or bowel problems, or oesophagitis. The leaflet also warns that the skin may become more sensitive to sunlight or UV light, so strong sun and sunbeds should be avoided while taking doxycycline.

Doxycycline interacts with a range of medicines. The leaflet specifically warns about penicillin, methoxyflurane, antacids, iron, zinc, bismuth, carbamazepine, phenytoin, barbiturates, warfarin, ciclosporin, and oral retinoids. Alcohol may also reduce the effect of doxycycline and should be avoided.

Find Leaflet Here