Skip to main content

The Use And Safety Of Doxycycline Hyclate And Other Second-Generation Tetracyclines

Tetracyclines have long been used to treat a wide variety of medical conditions, especially in the field of dermatology. Unfortunately, safety concerns, especially gastrointestinal (GI), have always been present.

Other safety concerns have included tooth development in children, candidiasis, vestibular concerns, photosensitivity/phototoxicity, and more unusual adverse effects such as uncontrolled hypertension.

This article first discusses the pharmacological development of the tetracyclines from the first to the second generation versions with an emphasis on the safety concerns, especially with regards to doxycycline hyclate (DH).

Second, the adverse effects of the tetracyclines are discussed. Third, the favorable side effect profile of DH delayed release capsules (Doryx) is compared with DH powder contained in tablets (Vibramycin). Fourth, the increased use with a continued favorable safety profile is also discussed concerning the subantimicrobial dosing of DH for acne.

Fifth, the safety of periodontic uses of DH is discussed. Last, the favorable safety profiles of the 2006 approved uses of an anti-inflammatory dose of 40 mg doxycycline for rosacea and an extended-release minocycline tablet for acne are also discussed.


"The use and safety of doxycycline hyclate and other second-generation tetracyclines"
Sloan B, Scheinfeld N
Expert Opin Drug Saf. 2008 Sep ; 7(5): 571-7 (Hubmed.org)



Highlight :
Treatment Of Rosacea | Acne Rosacea Antibiotic | Acne Rosacea | Rosacea Creams

Popular posts from this blog

Prevalence Of And Associated Factors For Dry Eye In A Spanish adult population

To estimate the prevalence of dry eye and to investigate its relationship with lifestyle and systemic factors in a general adult population in north-western Spain. METHODS: A dry eye questionnaire was administered and objective tests were performed in 654 individuals [mean age (Standard deviation): 63.6 (14.4) years, range: 40-96, 37.2% males]. Subjects were considered symptomatic when one or more of the symptoms of the questionnaire were present often or all the time. Schirmer test or= 3 and fluorescein staining >or= 1 were considered indicative of signs. Dry eye was defined as the simultaneous presence of symptoms and at least one sign. A design based analysis was performed and all calculations were weighted to give unbiased estimates. RESULTS: Dry eye prevalence was 11.0% (95%confidence interval [CI] 8.6-13.3). Dry eye was found to be more frequent in women (11.9%, 95%CI 8.8-15.1) than in men (9.0%, 95%CI 5.3-12.6), and was significantly associated with aging (p autoimmune diseas...

Skin findings in thyroid diseases.

Eur J Intern Med. 2009 Mar; 20(2): 158-61ArtantaÃ…Ÿ S, Gül U, Kiliç A, Güler SBACKGROUND: In cases of thyroid diseases, many of the symptoms arise on the skin. In this study, we aimed to detect and compare the skin findings and accompanying dermatoses of patients with thyroid diseases. MATERIALS AND METHODS: 220 patients with thyroid diseases, who did not have any medical cure, and 90 healthy individuals as a control group attended our study. All of the cases were examined, and the skin findings and/or dermatoses were recorded. The skin findings in the patients and the control group were compared statistically. RESULTS: Among 220 cases, in 125 (56.8%) skin findings were detected. The most frequently observed skin findings were chronic urticaria (6.8%), vitiligo (6.8%), diffuse alopecia (6%), acne vulgaris (5%) and acne rosacea (3.6%). No significant difference was detected statistically between the patients and control group in terms of skin findings. When compared for the presence ...

Motorola Milestone Unlocked Phone GSM with 5 MP Camera

Motorola Milestone Unlocked Phone GSM with 5 MP Camera " Find and share deals and reviews on Motorola Milestone Unlocked Phone Quad Band GSM with 5 MP Camera, MP3, GPS- International Version with No Warranty (Black) at dealspl " Card Slot quad band 1.3 mega pixed mp3 slider Motorola Milestone Quad Band GSM General 3G Network GSM 850 / 900 / 1800 / 1900. Its size is 480 x 854 pixels, 3.7 inches and weights 165 g. This is an multi-touch input method, accelerometer sensor and Proximity sensor for auto turn-off. This is an full QWERTY keyboard with 5-way navigation key, sound alert types vibration, MP3, WAV ringtones with with stereo speakers. This includes card slot microSD, up to 32GB, 8GB and data GPRS class 12 (4+1/3+2/2+3/1+4 slots), 32 – 48 kbps. This has Camera View detail on Amazon.com Motorola Milestone Unlocked Phone Quad Band GSM with 5 MP Camera, MP3, gps navigation- International Version with No Warranty (Black) Search Suggestion motorola droid...