Oral bromhexine has no effect on tear and lysosyme secretion in healthy subjects. 1996

R Avisar, and A Robinson, and H Savir, and H Levinsky
The External Eye Disease Clinic, Department of Ophthalmology, Hasharon Hospital, Petach-Tiqva, Israel.

The purpose of the present study was to determine whether bromhexine (Solvex) affects the rate of tear secretion or the concentration of lysosyme in the tear fluid in healthy subjects. The rate of tear secretion and lysosyme concentration in tear fluid were estimated in 56 healthy volunteers before and after 3 weeks of oral administration of placebo (tablets of vitamin C, 200 mg per day) followed by bromhexine tablets, 32 mg per day. Shirmer's test I was performed to evaluate the tear secretion, and the lysosyme plate method was used to detect lysosyme concentration. Shirmer's test showed similar results before and after placebo and bromhexine administration. In conclusion, oral bromhexine was found to have no effect on the rate of tear secretion, nor on the concentration of lysosyme in the tear fluid of healthy subjects.

UI MeSH Term Description Entries
D007765 Lacrimal Apparatus The tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system. Lacrimal Gland,Nasolacrimal Apparatus,Conjunctival Sacs,Lacrimal Ducts,Lacrimal Punctum,Lateral Canthus,Medial Canthus,Apparatus, Lacrimal,Apparatus, Nasolacrimal,Canthus, Lateral,Canthus, Medial,Conjunctival Sac,Duct, Lacrimal,Gland, Lacrimal,Lacrimal Duct,Lacrimal Glands,Lacrimal Punctums,Punctum, Lacrimal,Sac, Conjunctival
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009113 Muramidase A basic enzyme that is present in saliva, tears, egg white, and many animal fluids. It functions as an antibacterial agent. The enzyme catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. EC 3.2.1.17. Lysozyme,Leftose,N-Acetylmuramide Glycanhydrolase,Glycanhydrolase, N-Acetylmuramide,N Acetylmuramide Glycanhydrolase
D001964 Bromhexine A mucolytic agent used in the treatment of respiratory disorders associated with viscid or excessive mucus. (From Martindale, The Extra Pharmacopoeia, 30th ed, p744) Aparsonin,Bisolvon,Bromhexin,Bromhexin BC,Bromhexin Berlin-Chemie,Bromhexin-ratiopharm,Bromhexine Hydrochloride,Bromhexine Monohydrochloride,Brotussol,Darolan,Dur-Elix,Famel Bromhexine,Flegamin,Flubron,Hustentabs-ratiopharm,Mucohexine,NA-274,Quentan,Tesacof,bromhexin von ct,BC, Bromhexin,Bromhexin Berlin Chemie,Bromhexin BerlinChemie,Bromhexin ratiopharm,Bromhexine, Famel,Bromhexinratiopharm,Dur Elix,DurElix,Hustentabs ratiopharm,Hustentabsratiopharm,Hydrochloride, Bromhexine,Monohydrochloride, Bromhexine,NA 274,NA274,ct, bromhexin von,von ct, bromhexin
D005100 Expectorants Agents that increase mucous excretion. Mucolytic agents, that is drugs that liquefy mucous secretions, are also included here. Expectorant,Mucolytic,Mucolytic Agent,Mucolytic Agents,Mucolytics,Agent, Mucolytic,Agents, Mucolytic
D005136 Eye Proteins PROTEINS derived from TISSUES of the EYE. Proteins, Eye
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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