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- Succinylcholine should be administered only with great caution, if at all, prior to or during general anesthesia to patients receiving anticholinesterase medication because of possible respiratory or cardiovascular collapse.
- Caution should be observed in treating glaucoma with echothiophate iodide for ophthalmic solution in patients who are at the same time undergoing treatment with systemic anticholinesterase medications for myasthenia gravis, because of possible adverse additive effects.
(See "PRECAUTIONS: DRUG INTERACTIONS" for further information.)
- Gonioscopy is recommended prior to initiation of therapy. Routine examination to detect lens opacity should accompany clinical use of echothiophate iodide for ophthalmic solution.
- Where there is a quiescent uveitis or a history of this condition, anticholinesterase therapy should be avoided or used cautiously because of the intense and persistent miosis and ciliary muscle contraction that may occur.
- While systemic effects are infrequent, proper use of the drug requires digital compression of the nasolacrimal ducts for a minute or two following instillation to minimize drainage into the nasal chamber with its extensive absorption area. To prevent possible skin absorption, hands should be washed following instillation.
- Temporary or permanent discontinuance of medication is necessary if cardiac irregularities occur.
- Anticholinesterase drugs should be used with extreme caution, if at all, in patients with marked vagotonia, bronchial asthma, spastic gastrointestinal disturbances, peptic ulcer, pronounced bradycardia and hypotension, recent myocardial infarction, epilepsy, parkinsonism, and other disorders that may respond adversely to vagotonic effects.
- Anticholinesterase drugs should be employed prior to ophthalmic surgery only as a considered risk because of the possible occurrence of hyphema.
- Echothiophate iodide for ophthalmic solution should be used with great caution, if at all, where there is a prior history of retinal detachment.
- Temporary discontinuance of medication is necessary if salivation, urinary incontinence, diarrhea, profuse sweating, muscle weakness, or respiratory difficulties occur.
- Patients receiving echothiophate iodide for ophthalmic solution who are exposed to carbamate- or organophosphate-type insecticides and pesticides (professional gardeners, farmers, workers in plants manufacturing or formulating such products, etc.) should be warned of the additive systemic effects possible from absorption of the pesticide through the respiratory tract or skin. During periods of exposure to such pesticides, the wearing of respiratory masks, and frequent washing and clothing changes may be advisable.
Carcinogenesis, Mutagenesis, Impairment of Fertility
No data is available regarding carcinogenesis, mutagenesis, and impairment of fertility.
Teratogenic Effects – Pregnancy Category C
Animal reproduction studies have not been conducted with echothiophate iodide for ophthalmic solution. It is also not known whether echothiophate iodide for ophthalmic solution can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Echothiophate iodide for ophthalmic solution should be given to a pregnant woman only if clearly needed.
Because of the potential for serious adverse reactions in nursing infants from echothiophate iodide for ophthalmic solution, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Safety and effectiveness in pediatric patients have been established.
No overall differences in safety or effectiveness have been observed between elderly and younger patients.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 12/9/2008
Additional Phospholine Iodide Information
- Phospholine Iodide Drug Interactions Center: echothiophate iodide opht
- Phospholine Iodide Side Effects Center
- Phospholine Iodide in detail including Side Effects and Drug Images
- Phospholine Iodide Overview including Precautions
- Phospholine Iodide FDA Approved Prescribing Information including Dosage
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