Before Using This Medicine
In deciding to use a medicine,
the risks of taking the medicine must be weighed against the good it will
do. This is a decision you and your doctor will make. For the antimyasthenics,
the following should be considered:
Allergies - Tell your doctor if you have ever had any unusual or
allergic reaction to ambenonium, bromides, neostigmine, or pyridostigmine.
Also tell your health care professional if you are allergic to any other substances,
such as foods, preservatives, or dyes.
Pregnancy - Antimyasthenics have not been reported to cause birth
defects; however, muscle weakness has occurred temporarily in some newborn
babies whose mothers took antimyasthenics during pregnancy.
Breast-feeding - Antimyasthenics have not been reported to cause
problems in nursing babies.
Children - Although there is no specific information comparing
use of antimyasthenics in children with use in other age groups, these medicines
are not expected to cause different side effects or problems in children than
they do in adults.
Older adults - Many medicines have not been studied specifically
in older people. Therefore, it may not be known whether they work exactly
the same way they do in younger adults. Although there is not much information
comparing use of antimyasthenics in the elderly with use in other age groups,
these medicines are not expected to cause different side effects or problems
in older people than they do in younger adults.
Other medicines - Although certain medicines should not be used
together at all, in other cases 2 different medicines may be used together
even if an interaction might occur. In these cases, your doctor may want to
change the dose, or other precautions may be necessary. When you are taking
an antimyasthenic, it is especially important that your health care professional
knows if you are using any of the following:
Demecarium (e.g., Humorsol) or
Echothiophate (e.g., Phospholine Iodide) or
Isoflurophate (e.g., Floropryl) or
Malathion (e.g., Prioderm) - Using these medicines with antimyasthenics
may result in serious side effects
Guanadrel (e.g., Hylorel) or
Guanethidine (e.g., Ismelin) or
Mecamylamine (e.g., Inversine) or
Procainamide (e.g., Pronestyl) or
Trimethaphan (e.g., Arfonad) - The effects of these medicines
may interfere with the actions of the antimyasthenics
Other medical problems - The presence of other medical
problems may affect the use of the antimyasthenics. Make sure you tell your
doctor if you have any other medical problems, especially:
Intestinal blockage or
Urinary tract blockage or
Urinary tract infection - These medicines may make the condition