Prostaglandin analogs may cause changes in iris color and eyelid skin, growth of eyelashes , stinging, blurred vision , eye redness, itching, and burning. Beta blockers' side effects include low blood pressure , reduced pulse rate , fatigue , shortness of breath, and in rare occasions, reduced libido and depression . Alpha agonists can cause burning or stinging, fatigue, headache , drowsiness , dry mouth and nose , and also they have a higher likelihood of allergic reaction. Carbonic anhydrase inhibitors may cause stinging, burning, and eye discomfort. 
Atropine occurs naturally and is extracted from belladonna alkaloids contained in plants. Atropine blocks the action of acetylcholine, a neurotransmitter that causes the contraction of two types of muscle, smooth and cardiac muscles. It also has other neurological effects. Ophthalmic atropine is used during eye examinations to dilate the pupil. Atropine is also used to weaken the contraction of the muscles within the eyes, both the muscles that operate the iris and the lens . Paralysis of the lens, called cycloplegia, results in the loss of the ability to focus vision. Paralysis of the iris (mydriasis) prevents the iris from adjusting to the brightness of incoming light and affects the ability to see clearly. In clinical studies, use of a single topical administration of atropine 1% ophthalmic solution (eye drops) resulted in maximal mydriasis (pupil dilation or widening) in approximately 40 minutes and maximal cycloplegia in approximately 60 to 90 minutes. In most cases, full recovery occurred in approximately one week but can take a couple of weeks. The FDA approved atropine in 1938.
Escherichia coli, Enterobacter aerogenes (previously Aerobacter aerogenes), Shigella species, Mima varieties as well as Herellea varieties, Haemophilus influenzae (respiratory infections), Klebsiella types (urinary and also respiratory infections).
When bacteriologic screening indicates proper susceptibility to the drug, Oxytetracycline is suggested for treatment of infections created by the complying with gram-positive microorganisms.
As much as 44 percent of pressures of Streptococcus pyogenes and 74 percent of Streptococcus faecalis have been found to be resistant to tetracycline medicines. As a result, tetracyclines need to not be used for streptococcal illness unless the organism has been shown to be sensitive.
For upper respiratory infections as a result of Group A beta-hemolytic streptococci, penicillin is the typical drug of choice, including prophylaxis of rheumatic fever.
Staphylococcus aureus, skin and also soft-tissue infections. Oxytetracycline is not the medicine of selection in the therapy of any sort of staphylococcal infections.
Neisseria gonorrhoeae, Treponema pallidum and Treponema pertenue (syphilis and yaws), Listeria monocytogenes, Clostridium types, Bacillus anthracis, Fusobacterium fusiforme (Vincent's infection), Actinomyces types.
Tetracyclines are suggested in the therapy of trachoma, although the infectious broker is not consistently gotten rid of, as evaluated by immunofluorescence.
THE USE OF DRUGS OF THE TETRACYCLINE CLASS DURING TOOTH DEVELOPMENT (LAST HALF OF PREGNANCY, INFANCY, AND CHILDHOOD TO THE AGE OF 8 YEARS) MAY CAUSE PERMANENT DISCOLORATION OF THE TEETH (YELLOW-GRAY-BROWN). This unfavorable response is more usual during long-term usage of the medicines however has been observed complying with repeated short term programs. Enamel hypoplasia has actually also been reported. TETRACYCLINE DRUGS, THEREFORE, SHOULD NOT BE USED IN THIS AGE GROUP UNLESS OTHER DRUGS ARE NOT LIKELY TO BE EFFECTIVE OR ARE CONTRAINDICATED.