Periostat
SIDE EFFECTS
Adverse Reactions in Clinical Trials of a bioequivalent form of doxycycline hyclate capsules: In clinical trials of adult patients with periodontal disease 213 patients received 20 mg BID over a 9 - 12 month period. The most frequent adverse reactions occurring in studies involving treatment with a bioequivalent form of doxycycline hyclate capsules or placebo are listed below:
| Incidence (%) of Adverse Reactions in Clinical Trials of Doxycycline Hyclate Capsules, 20mg (Bioequivalent to Doxycycline Hyclate Tablets, 20mg) vs. Placebo | ||
| | Doxycycline Hyclate Capsules 20 mg BID (n=213) | Placebo (n=215) |
| Headache | 55 (26%) | 56 (26%) |
| Common Cold | 47 (22%) | 46 (21%) |
| Flu Symptoms | 24 (11%) | 40 (19%) |
| Tooth Ache | 14 (7%) | 28 (13%) |
| Periodontal Abcess | 8 (4%) | 21 (10%) |
| Tooth Disorder | 13 (6%) | 19 (9%) |
| Nausea | 17 (8%) | 12 (6%) |
| Sinusitis | 7 (3%) | 18 (8%) |
| Injury | 11 (5%) | 18 (8%) |
| Dyspepsia | 13 (6%) | 5 (2%) |
| Sore Throat | 11 (5%) | 13 (6%) |
| Joint Pain | 12 (6%) | 8 (4%) |
| Diarrhea | 12 (6%) | 8 (4%) |
| Sinus Congestion | 11 (5%) | 11 (5%) |
| Coughing | 9 (4%) | 11 (5%) |
| Sinus Headache | 8 (4%) | 8 (4%) |
| Rash | 8 (4%) | 6 (3%) |
| Back Pain | 7 (3%) | 8 (4%) |
| Back Ache | 4 (2%) | 9 (4%) |
| Menstrual Cramp | 9 (4%) | 5 (2%) |
| Acid Indigestion | 8 (4%) | 7 (3%) |
| Pain | 8 (4%) | 5 (2%) |
| Infection | 4 (2%) | 6 (3%) |
| Gum Pain | 1 (< 1%) | 6 (3%) |
| Bronchitis | 7 (3%) | 5 (2%) |
| Muscle Pain | 2 (1%) | 6 (3%) |
Adverse Reactions for Tetracyclines
The following adverse reactions have been observed in patients receiving tetracyclines:
Gastrointestinal: anorexia, nausea, vomiting, diarrhea, glossitis, dysphagia, enterocolitis, and inflammatory lesions (with vaginal candidiasis) in the anogenital region. Hepatotoxicity has been reported rarely. Rare instances of esophagitis and esophageal ulcerations have been reported in patients receiving the capsule forms of the drugs in the tetracycline class. Most of these patients took medications immediately before going to bed (See DOSAGE AND ADMINISTRATION).
Skin: maculopapular and erythematous rashes. Exfoliative dermatitis has been reported but is uncommon. Photosensitivity is discussed (See WARNINGS).
Renal toxicity: Rise in BUN has been reported and is apparently dose related (See WARNINGS).
Hypersensitivity reactions: urticaria, angioneurotic edema, anaphylaxis, anaphylactoid purpura, serum sickness, pericarditis, and exacerbation of systemic lupus erythematosus.
Blood: Hemolytic anemia, thrombocytopenia, neutropenia, and eosinophilia have been reported.
DRUG INTERACTIONS
Because tetracyclines have been shown to depress plasma prothrombin activity, patients who are on anticoagulant therapy may require downward adjustment of their anticoagulant dosage.
Since bacteriostatic antibiotics, such as the tetracycline class of antibiotics, may interfere with the bactericidal action of members of the b-lactam (e.g. penicillin) class of antibiotics, it is not advisable to administer these antibiotics concomitantly.
Absorption of tetracyclines is impaired by antacids containing aluminum, calcium, or magnesium and by iron containing preparations. Absorption is also impaired by bismuth subsalicylate.
Barbiturates, carbamazepine, and phenytoin decrease the half-life of doxycycline. The concurrent use of tetracycline and Penthrane (methoxy-fluorane) has been reported to result in fatal renal toxicity. Concurrent use of tetracycline may render oral contraceptives less effective.
Generic Name: Doxycycline Hyclate
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