- Leukoedema - Fordyce spots - buccal - Fordyce spots - lip - Cheek biting - Cheek biting 2 - Oral frictional keratosis - Leukoplakia - buccal - Leukoplakia - tongue Medscape - Infection-specific dosing for tetracycline, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Chemical structure. The molecular formula is C22H24N2O8, HCl, ½ C2H6O, ½ H2O and molecular weight is 512.9. Mechanism of action. Tetracycline is a bacteriostatic drug acts by binding reversibly to the 30S subunit of the bacterial ribosome. Learn about the potential side effects of tetracycline. Includes common and rare side effects information for consumers and healthcare professionals. Side Effects. Nausea, vomiting, diarrhea, loss of appetite, mouth sores, black hairy tongue, sore throat, dizziness, headache, or rectal discomfort may occur. Tetracycline is an antibiotic that fights infection caused by bacteria. Tetracycline is used to treat many different bacterial infections of the skin, intestines, respiratory tract, urinary tract, genitals, lymph nodes, and other body systems. Chances are you’ve heard of “the pink stuff.” Pepto-Bismol is a well-known over-the-counter medication used to treat digestive problems. Glossitis can mean soreness of the tongue, or more usually inflammation with depapillation of the dorsal surface of the tongue (loss of the lingual papillae), leaving a smooth and erythematous (reddened) surface, (sometimes specifically termed atrophic glossitis). Pictures of harry tongue, lip cancer, tonsillitis, oral herpes, tongue cancer, throat and mouth ulcers, oral cancer, salivary galand stones pictures and other disease which affect the oral cavity. “Black hairy tongue” (BHT), also known as lingua villosa nigra, hyperkeratosis of the tongue, nigrities linguae, keratomycosis linguae, and melanotrichia linguae, is a benign disorder characterized by hypertrophy of the filiform papillae.