Cosopt is an ophthalmic prescription drug that is a combination drug. The medication combines carbonic anhydrase inhibitor power with a beta blocker to help lower eye pressure. It is used most for those who suffer from glaucoma but it can also be used for other conditions in which high eye pressure is a problem.

The combined medications with active ingredients dorzolamide and timolol work together by blocking the protein that causes fluid buildup and by blocking beta receptors. Both of these active ingredients lower the amount of fluid in the eye simultaneously but in different ways.

There is also a Cosopt PF, which is a preservative-free version of the medicine. Each solution comes in a steady dosage form that is the same.

Precautions and Warnings with Cosopt

Always speak to your doctor before starting a medication. The doctor should be aware of your health history. They also need to know any and all medications that you take. This includes herbs, supplements, vitamins, prescriptions, and OTC drugs. Without the proper information, the doctor cannot accurately advise you on the safety of this medication.

Be careful handling the eye dropper. If it touches your eye, your hands, or any other surface it can become contaminated. Contamination can lead to bacteria in the eye, which could cause an infection.

If you are pregnant or breastfeeding, it may be best not to use Cosopt. Consult with your doctor to determine if it is ok for you to use. It is not recommended to use Cosopt for anyone who is less than 18 years of age.

Cosopt can make your vision blurry. Make sure your vision has cleared before driving any vehicles or heavy machinery. Do not wear contact lenses while using Cosopt. If the doctor approves the use of contact lenses, wait at least 15 minutes after using your drops to put them in.

You should not use any form of Cosopt if the following statements apply to you:

  • Allergic to Cosopt or any ingredients
  • Suffer from asthma or serious breathing issues
  • Have chronic obstructive lung disease
  • Diagnosed with heart failure or have irregular heartbeats
  • Suffer from severe kidney issues
  • Taking oral anhydrase inhibitors

Cosopt Side Effects

Cosopt works well for the majority of people, but you may experience some side effects with use. Be aware of the side effects and know when to call the doctor. If your mild side effects do not resolve or they concern you, reach out to your doctor right away.

If you experience severe side effects or an allergic reaction to the medication, stop using it and seek immediate medical care. Here is a look at the side effects.

Mild Side Effects

Serious Side Effects

Temporary blurry visionDizziness
Itching or watery eyesIrregular heartbeat (especially slow)
Stinging eyesMuscle weakness
Eye rednessMood changes or depression
Sensitivity to lightNumbness or pain in hands and feet
Bad taste in your mouthChanges in vision
HeadachesPain in the back, side, or abdomen
Corneal inflammationNausea or vomiting
Eye tearingYellowing eyes or skin
Dry eyesSigns of an infection
BronchitisEye pain
Eye discharge that won’t stop
Chest pain
Confusion or trouble speaking

If you have any concerns at all, it’s better to be safe than sorry. Reach out to your doctor with questions or concerns, regardless of what your side effects are. There may be side effects that are not listed here.

Drug Interactions with Cosopt

Cosopt may cause other medicines not to be effective. You also be at a higher risk of side effects when used with certain medications. Always speak to your doctor about all medicines, supplements, and herbal products you are using so they can assess whether there may be a negative interaction.

Your doctor may adjust dosages or even have you stop a medication temporarily. Do not adjust your medication without your doctor’s approval.

This is not an entire list of every medication that may interact. There are many generic and categorical medications that need to be considered.

These are the most common products that may interact with Cosopt:

Cost of Cosopt in America

You will find that the price of Cosopt can vary in different locations or from different pharmacies. It doesn’t hurt to shop around to see if you can get the best deal. You can also use dug discount or coupon programs to try to save some money. There are generic alternatives to Cosopt. Consult with your doctor to determine if there are any options that may work for you.

The average price of Cosopt is $200-$300 per bottle. You may be able to save significantly on a generic with the ability to spend more like $20-$50 per bottle.

Why Is Cosopt Expensive?

Cosopt is expensive first and foremost because it is a name-brand drug. Specialty drugs known by a certain name are typically far more expensive. In addition, ophthalmic treatments have a very small niche market, which means they have much lower demand than traditional prescriptions for everyday health needs. This contributes to the cost as it must be sold for enough money to make a profit and cover overhead expenses.

Strengths and Dosages of Cosopt

Cosopt comes in just one strength option. You may be able to find different sizes of bottles, but a 10 ml option is the most common choice. Every bottle of Cosopt is made with 2% dorzolamide and .5% timolol as the active ingredients. In most cases, your doctor’s dosage recommendation will be to use one drop twice per day in the affected eye.

Cosopt Alternatives

There are some alternative options to using Cosopt. Your doctor can determine what is the best fit. Speak to them about any questions or concerns so you can arrive at an agreed medication choice.

FAQs of Cosopt

What is Cosopt?

Cosopt is a combination prescription that uses both dorzolamide and timolol to treat glaucoma or eye pressure.

Who Makes Cosopt?

Cosopt is made by Merck Sharp & Dohme Corp., but is manufactured by Thea Pharma Inc.

How Does Cosopt Work?

Cosopt uses inhibitors and beta blockers to suppress fluid, improve the flow of fluid, and thereby reduce the pressure that is caused by fluid in the eye.

Is Cosopt Dangerous to Use?

Always consult with your doctor and ensure they are aware of your health history. There are some health conditions in which Cosopt is not recommended for use. Take the time to be aware and check to see if you have any of those health conditions. When you consider the warnings and risks, there is little danger to using Cosopt.

Does Cosopt Make My Eye Dry?

Cosopt could potentially cause you to have dry eye. It is one of the listed common side effects.

How Long is Cosopt Good for Once Opened?

Cosopt has a very short lifespan. The traditional Cosopt option is good for up to 28 days from the time you open it. However, if you use Cosopt PF, be aware the lifespan is only 15 days after opening since there are no preservatives to sustain it.

Can You Use Cosopt and Ziopta Together?

You may be able to use these two medications together with approval from your doctor.

IMPORTANT NOTE: The information provided here is for educational purposes only and is not intended to serve as medical advice, diagnosis, or treatment recommendations. It should not be taken as an endorsement of any specific medication or treatment. Individual health conditions and responses to treatment can vary greatly; therefore, this information should not be seen as a guarantee of safety, suitability, or effectiveness for any particular individual. Always consult with a healthcare professional for personalized medical advice and before making any decisions regarding your health or treatment plans.

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