Micronized Colestipol Hydrochloride: An Overview

What Is Micronized Colestipol Hydrochloride?

Micronized Colestipol hydrochloride tablets are used to lower cholesterol levels. Colestipol is a water-insoluble resin made of diethylenetriamine and 1-chloro-2,3-epoxypropane, functioning as a basic anion-exchange copolymer. They contain one gram of micronized Colestipol hydrochloride as the active ingredient.

Approximately one out of five amine nitrogens in Colestipol are protonated in the chloride form. They are composed of inactive ingredients such as cellulose acetate phthalate, glyceryl triacetate, carnauba wax, hypromellose, magnesium stearate, povidone, and silicon dioxide.

Is Micronized Colestipol Hydrochloride FDA Approved?

The FDA (Food and Drug Administration) approved Colestipol on May 25th, 2017.

Indications of Micronized Colestipol hydrochloride:

• Micronized Colestipol hydrochloride granules and flavoured Micronized Colestipol hydrochloride granules are meant to be used alongside changes in diet to help lower high levels of bad cholesterol (LDL) in people with a condition called primary hypercholesterolemia.

• Generally, these drugs do not have a significant effect on triglyceride levels, but in some cases, they might increase them.

• If a person is at high risk for heart disease because of high cholesterol, these drugs can be part of the treatment plan, but they should not be the only thing to do. They should also focus on changing their diet, as recommended by the NCEP (National Centers for Environmental Prediction) guidelines.

• Before starting on these drugs, it is recommended to try intensive dietary therapy and counseling for at least six months. In some cases, if the LDL (low-density lipoprotein) cholesterol is very high or if the patient already has heart disease, they might not have to wait that long.

• According to guidelines, the main goal of treatment is to lower bad cholesterol (LDL-C), and doctors should use LDL-C levels to decide if the treatment is working. If LDL-C levels are not available, total cholesterol levels can be used instead.

What Are the Contraindications of Micronized Colestipol Hydrochloride?

Micronized Colestipol hydrochloride granules and flavored Micronized Colestipol hydrochloride granules should not be used by people who have had allergic reactions to any of the ingredients in these medications.

What Is the Dosage of Micronized Colestipol Hydrochloride?

Available Doses and Dosage Forms:

Micronized Colestipol hydrochloride granules come in different packaging options:

• Boxes containing 30 or 90 foil packets.

• Bottles containing 300 or 500 grams of granules, with a scoop.

• Each packet or scoop contains 5 grams of Micronized Colestipol hydrochloride.

Flavored Micronized Colestipol hydrochloride granules are available in:

• Boxes containing 60 foil packets.

• Bottles containing 450 grams of granules, which is approximately 60 doses, with a scoop.

Each packet or scoop contains approximately 7.5 grams of flavored Micronized Colestipol hydrochloride, including 5 grams of the active ingredient, Colestipol hydrochloride.

For adults, the recommended daily dose is one to six packets or scoopfuls, taken once or divided throughout the day. Treatment usually starts with one dose once or twice a day, with the option to increase by one dose per day every one or two months until the desired effect is reached.

Dosing Considerations:

• For Pediatric Patients With Dyslipidemias: The dosage has not been established. However, doses of 10 to 20 grams daily or 500 milligrams per kilogram daily, divided into two to four doses, have been used. Lower doses of 125 to 250 mg per kilogram daily have been utilized in children with modestly increased cholesterol after dietary modifications.

• Regarding Dyslipidemias in Adults: Two grams once or twice a day is the starting dosage, which can be increased by two grams every one to two months if necessary. Usually taken once or in divided doses, the daily dosage is between 2 and 16 grams. If the intended outcome is not obtained, think about alternate therapies or combined therapy. Modify the dosage if triglyceride levels rise noticeably.

• For Adults With Preexisting Constipation: For five to seven days, start with 5 grams once a day; after that, increase to 5 grams twice a day. Every four to six weeks, check your cholesterol and constipation.Increase by one dose per day monthly while monitoring. If constipation worsens or goals are not met, consider combined therapy or alternatives.

• For Patients With Heterozygous Familial Hypercholesterolemia: Use 30 grams of Colestipol hydrochloride granules daily in combination with Niacin.

For Patients

What Are the Things to Inform the Doctor Before Taking the Micronized Colestipol Hydrochloride?

• Let the doctor know if the person is allergic to Colestipol or any other medications.

• Tell them about all the medicines (both prescription and over-the-counter drugs), vitamins, nutritional supplements, and herbal products that the individual is taking or planning to take. This also includes specific medications like Amiodarone, antibiotics, blood thinners, heart medications, and others.

• Inform the doctor if the person has a history of unusual bleeding, thyroid issues, heart or intestinal problems, or if the person has hemorrhoids.

• If a person takes Gemfibrozil, make sure to take it either two hours before or two hours after taking Colestipol.

• If the person is pregnant, planning to become pregnant, or breastfeeding, inform the doctor. If they become pregnant while taking Colestipol, contact the doctor immediately.

How Is Micronized Colestipol Hydrochloride Administered?

Micronized Colestipol hydrochloride is available as tablets and granules for oral use. Tablets are usually taken once or twice daily, while granules may be taken one to six times daily depending on your doctor's prescription.

• Important Timing With Other Medications: Take all other medications at least one hour before or four hours after taking Colestipol to prevent interference with their absorption.

• For Tablets: Swallow tablets whole with a full glass of water or another liquid. Do not chew, split, or crush them.

• For Granules: Always mix granules with water or another liquid before taking. Never take them dry to avoid throat or lung discomfort. Mix the prescribed amount with at least three ounces of liquid and stir well. The medication will not dissolve completely. You can use water, juice, carbonated beverages, or mix with cereals, soups, or pulpy fruits.

• Dosage Adjustments: The doctor may gradually increase your dose at one to two-month intervals based on your response to treatment.

• Continuing Treatment: Keep taking Colestipol even if you feel well. Do not stop without consulting your doctor first, as consistent use is necessary for maintaining cholesterol control.

What Are the Side Effects of Micronized Colestipol Hydrochloride?

The Most Common Gastrointestinal Side Effects:

Constipation (difficulty in passing stools).

Less Common Digestive Issues Include

• Abdominal pain and cramping.

• Bloating and gas.

• Indigestion and heartburn.

• Diarrhea (loose or watery stools).

• Nausea and vomiting.

Rare Side Effects Include:

• Bleeding hemorrhoids (swollen veins in the anus).

• Blood in stool.

• Peptic ulcers.

• Gallbladder inflammation.

• Gallstones.

Others Include:

• Liver Enzyme Changes: Some patients may experience temporary increases in certain liver enzymes while taking these medications.

• Cardiovascular: Chest pain, angina (chest pain due to reduced blood flow to the heart), and rapid heartbeat have been reported occasionally.

• Hypersensitivity: Rash is reported infrequently. Urticaria (hives - causes skin infection with itchy welts) and dermatitis (swelling and irritation of the skin) are rare in patients taking these medications.

• Musculoskeletal: Patients may experience muscle and joint pain, arthritis, and backache.

• Neurological: Headaches, including migraine and sinus headaches, have been reported. Other occasional complaints include dizziness, feeling lightheaded, and difficulty sleeping (insomnia).

• Miscellaneous: Some patients may experience loss of appetite (anorexia), fatigue, weakness, shortness of breath, and swelling in the hands or feet. These symptoms are infrequently reported.

Dietary Considerations:

• Mixing With Fluids: It is important to mix micronized Colestipol hydrochloride and flavored Micronized Colestipol hydrochloride with water or another liquid before taking them to prevent any discomfort in the throat or lungs.

• With Beverages: Mix the prescribed amount with at least three ounces of water or your favorite beverage. Thick or pulpy juices may help with consistency. Stir well until completely mixed. The medication will not dissolve in the liquid. You can also use carbonated beverages, though this may cause stomach discomfort.

• With Cereals, Soups, and Fruits: Mix with milk in hot or regular breakfast cereals, or add to soups with plenty of liquid. You can also add to pulpy fruits like crushed pineapple, pears, peaches, or fruit cocktail.

Missed Dose:

If you missed a dose, then take it as soon as you remember. But if it is almost time for the next dose, just skip the missed one and follow the usual schedule. Do not take extra medications to compensate for the missed dose.

Overdose:

Overdosing with Micronized Colestipol hydrochloride has not been reported, but if it does happen, the main risk would be a blockage in the digestive system. The treatment needed would depend on where the blockage is, how severe it is, and whether the person's gut is functioning normally.

Storage:

• Keep this medication in its original container, tightly closed, and out of reach of children.

• Store it at room temperature, away from excess heat and moisture (do not keep it in the bathroom).

• Store all medications out of reach of children, as some containers are easy for them to open.

• To prevent accidental ingestion by children, always use safety caps and store medicines in a secure place.

• Dispose of any unused medication properly to prevent accidental consumption by pets, children, or others.

• Do not flush this medication down the toilet. Instead, check if the community has a medicine take-back program. If not, consult the pharmacist or local waste management for safe disposal options.

• Remember to store these medications at room temperature between 20°C (degrees Celsius) and 25°C (68°F (degrees Fahrenheit) to 77°F).

Warnings and Precautions

• Do not take Micronized Colestipol hydrochloride or flavored Micronized Colestipol hydrochloride dry. Always mix them with water or another liquid before swallowing to avoid problems in the throat or lungs.

• Before starting these medications, doctors need to check if there are other reasons for high cholesterol, like diabetes (high blood sugar), thyroid issues (producing too much thyroid hormone or less), or liver problems. They also need to check cholesterol levels.

• For some people with specific cholesterol levels, doctors can estimate LDL cholesterol using a formula. However, for higher triglyceride levels, a different method is needed.

• These medications can affect how the body absorbs certain vitamins like folic acid, as well as vitamins A, D, and K.

• Long-term use of these medications might lead to a lack of vitamin K, which can increase the risk of bleeding. This can be treated with vitamin K supplements.

• Doctors need to regularly check cholesterol and triglyceride levels to see how well the medication is working.

• These medications can cause or worsen constipation. Doctors should start with a low dose and gradually increase it to avoid problems.

• There is a small chance of developing thyroid problems or acidosis with long-term use of these medications.

For Doctors

What Are the Pharmacological Aspects of Micronized Colestipol Hydrochloride?

Pharmacodynamics:

Treatment with Colestipol hydrochloride typically leads to a decrease in serum cholesterol levels within one month. Discontinuation of treatment usually results in cholesterol levels returning to baseline within a month. Colestipol hydrochloride increases levels of lipoprotein LpAI, which is associated with removing cholesterol from cells.

Additionally, it protects against heart disease. For some people with familial hypercholesterolemia, Colestipol hydrochloride may not be sufficient to reach ideal cholesterol levels. Combining it with nicotinic acid has been demonstrated to be beneficial. It further lowers cholesterol and triglyceride levels while boosting HDL (high-density lipoprotein) cholesterol, perhaps correcting cholesterol readings in these patients.

Intensive lipid-lowering therapy, including Colestipol hydrochloride, has been shown to slow down or reverse the progression of artery blockages in patients with or at risk for coronary artery disease, compared to conventional measures like diet alone.

Pharmacokinetics:

Colestipol hydrochloride is hydrophilic (water-loving) but almost completely insoluble in water. It is not broken down by digestive enzymes and is not absorbed into the bloodstream. Only a tiny fraction (less than 0.17 percent) of an oral dose is excreted in urine.

Mechanism of Action:

Colestipol hydrochloride binds to bile acids in the intestine, forming a complex that is then excreted in feces. By decreasing the reabsorption of bile acids, this activity interferes with the enterohepatic circulation (circulation of drugs, bile acids, bilirubin, and other substances from the liver to the bile) and stops them from being recycled.

By increasing the fecal excretion of bile acids, Colestipol hydrochloride prompts the body to create more bile acids from cholesterol. This process leads to increased uptake of LDL (low-density lipoprotein) cholesterol by the liver, resulting in lower LDL cholesterol levels in the bloodstream.

Drug Interactions of Micronized Colestipol Hydrochloride

Colestipol hydrochloride is a type of resin that can bind to certain drugs, affecting their absorption. To minimize this interaction, it is recommended to take other medications at least one hour before or four hours after taking Micronized Colestipol hydrochloride or flavored Micronized Colestipol hydrochloride. Drugs that may interact with Micronized Colestipol hydrochloride include:

• Propranolol.

• Chlorothiazide.

• Tetracycline.

• Furosemide.

• Penicillin G.

• Hydrochlorothiazide.

• Gemfibrozil.

• Aspirin.

• Clindamycin.

• Clofibrate.

• Methyldopa.

• Nicotinic acid (Niacin).

• Tolbutamide.

• Phenytoin or Warfarin.

• Phosphate supplements and Hydrocortisone.

• Mycophenolic acid.

Specific Considerations:

• Pregnancy: Colestipol hydrochloride is not absorbed much by the body, so it is unlikely to harm the fetus when taken during pregnancy in recommended doses. However, there have not been enough studies on pregnant women. Also, because it can interfere with the absorption of certain vitamins, there might be risks even with vitamin supplements. Doctors need to consider the potential benefits and risks before prescribing it to pregnant women or those planning to become pregnant.

• Breastfeeding: It is important to be cautious when using Micronized Colestipol hydrochloride while breastfeeding. Since this medication may affect vitamin absorption, it could affect nursing infants.

• Pediatric Use: It has not been proven if Micronized Colestipol hydrochloride is safe or effective for children because there have not been enough studies in this population.