In this Article

• What is carbachol ophthalmic (Miostat)?
• What are the possible side effects of carbachol ophthalmic (Miostat)?
• What is the most important information I should know about carbachol ophthalmic (Miostat)?
• What should I discuss with my healthcare provider before using carbachol ophthalmic (Miostat)?
• How should I use carbachol ophthalmic (Miostat)?
• What happens if I miss a dose (Miostat)?
• What happens if I overdose (Miostat)?
• What should I avoid while using carbachol ophthalmic (Miostat)?
• What other drugs will affect carbachol ophthalmic (Miostat)?
• Where can I get more information?

What should I discuss with my healthcare provider before using carbachol ophthalmic (Miostat)?

Rarely, carbachol ophthalmic may cause retinal detachment. Tell your doctor if you have any type of retinal disease, if you have had a retinal tear, if you are nearsighted, or if you have had cataract surgery. These conditions may increase the risk of retinal detachment.

Before using this medication, tell your doctor if you have

• heart failure,
• high or low blood pressure,
• ever had a heart attack,
• asthma,
• a stomach ulcer or stomach spasms,
• epilepsy,
• hyperthyroidism (an overactive thyroid),
• blockage of your urinary tract or difficulty urinating, or
• Parkinson's disease.

You may not be able to use carbachol ophthalmic, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

Carbachol ophthalmic is in the FDA pregnancy category C. This means that it is not known whether carbachol ophthalmic will be harmful to an unborn baby. Do not use this medication without first talking to your doctor if you are pregnant or could become pregnant during treatment.

It is not known whether carbachol passes into breast milk. Do not use carbachol ophthalmic without first talking to your doctor if you are breast-feeding a baby.

How should I use carbachol ophthalmic (Miostat)?

Use carbachol ophthalmic eye drops exactly as directed by your doctor. If you do not understand these instructions, ask your doctor, pharmacist, or nurse to explain them to you.

Wash your hands before using the eye drops.

If you wear contact lenses, remove them before applying carbachol ophthalmic. Ask your doctor if contact lenses can be reinserted after application of the medication. Carbachol ophthalmic may contain a preservative (benzalkonium chloride), which may cause discoloration of contact lenses.

To apply the eye drops:

• Tilt the head back slightly and pull down on the lower eyelid. Position the dropper above the eye. Look up and away from the dropper. Squeeze out a drop and close the eye. Apply gentle pressure to the inside corner of the eye (near the nose) for about 1 minute to prevent the liquid from draining down the tear duct. If you are using more than 1 drop in the same eye, repeat the process with about 5 minutes between drops. Repeat the process in the other eye if needed.

Do not touch the dropper to any surface, including the eyes or hands. The dropper is sterile. If it becomes contaminated, it could cause an infection in the eye.

Do not use any eye drop that is discolored or has particles in it.

Store carbachol ophthalmic at room temperature away from moisture and heat. Keep the bottle properly capped.