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DOXYCYCLINE

DOXYCYCLINE

It is well absorbed from the gut, even after food and is excreted in the bile, in the faeces, which it re-enters by diffusing across the small intestinal wall, and, to some extent,in the urine.

Indications

Respiratory, genito-urinary, dental, ophthalmic, ENT and gynaecological infections. Venereal diseases.


Dosage

1st day 100 mg 12 hrly followed by 100 mg daily.


Contra-Indications

Hypersensitivity.


Special Precautions

Impaired hepatic function, blood dyscrasias. Regular blood counts on long term therapy, Antacids, mineral supplements. Paediatrics: Not recommended under 8 years. In older children reduced dose necessary. Pregnancy: Doxycycline Contraindicated, may discolour teeth of the foetus. Lactation: Contraindicated. Elderly: No known problem.


Side Effects

Tooth discolouration, enamel hypo-plasia, reduced fibula growth rate.Avoid use in children below 8 yrs,unless no alternative drug.


Drug Interactions

Antacids, milk, calcium, magnesium and iron reduce absorption.


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