Humalog 75/25 is used to control blood sugar levels in diabetes mellitus, including diabetes type 1 and diabetes type 2. Humalog 75/25 is less popular than other insulins. There are currently no generic options for any insulin brand, but less expensive biosimilar versions may be available in the future.
Check our savings tips for co-pay cards, assistance programs, and other ways to reduce your cost. Humalog 75/25 is covered by most Medicare and insurance plans.
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Commonly Used Brand Name(s)Humalog Mix 50/50, Humalog Mix 75/25
Pharmacologic ClassificationsInsulin Lispro, Recombinant
- Proper Use
- Missed Dose
- Use & Storage
- Before Using
- Breast Feeding
- Drug Interactions
- Other Interactions
- Other Medical Problems
Insulin lispro protamine and insulin lispro is a combination of a fast-acting insulin and an intermediate-acting type of human insulin. Insulin is used by people with diabetes to help keep blood sugar levels under control. When you have diabetes mellitus, your body cannot make enough or does not use insulin properly. So, you must take additional insulin to regulate your blood sugar and keep your body healthy. This is very important as too much sugar in your blood can be harmful to your health.
This medicine is available only with your doctor's prescription.
A nurse or other trained health professional may give you this medicine. You may also be taught how to give your medicine at home. It is given as a shot under your skin.
Always double-check both the concentration (strength) of your insulin and your dose. Concentration and dose are not the same. The dose is how many units of insulin you will use. The concentration tells how many units of insulin are in each milliliter (mL), such as 100 units/mL (U-100), but this does not mean you will use 100 units at a time.
Each package of insulin lispro protamine and insulin lispro combination injection contains a patient information leaflet and patient instructions. Read and follow the instructions carefully before beginning your treatment and each time you get a refill for any new information. Make sure you understand:
- How to prepare the medicine.
- How to inject the medicine.
- How to use disposable insulin delivery device.
- How to dispose of syringes, needles, and injection devices.
It is best to use a different place on the body for each injection (eg, under the skin of your abdomen or stomach, buttocks, thigh, or upper arm). If you have questions about this, contact your doctor.
When used as a mealtime insulin, this insulin combination should be taken within 15 minutes before a meal (2 meals or a meal and a snack).
To use this medicine:
- Vial: Invert the vial carefully at least 10 times to mix the insulin.
- KwikPen®: Mix the insulin by rolling the pen between your palms 10 times. Turn the pen upside down at least 10 times.
- The insulin should look cloudy or milky white after you mix it. Do not use this insulin if it is clear or has clumps or particles in it.
- Do not store the pen with a needle attached.
Follow carefully the special meal plan your doctor gave you. This is the most important part of controlling your condition, and is necessary if the medicine is to work properly. Also, exercise regularly and test for sugar in your blood or urine as directed.
You should never mix insulin lispro protamine and insulin lispro combination with other insulin injections without checking with your doctor first. These injections are usually done separately. Also, this medicine should not be used in an insulin infusion pump. If you have questions about this, ask your doctor or pharmacist.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For injection dosage form (suspension):
- For diabetes mellitus:
- Adults—The dose is based on your blood sugar and must be determined by your doctor.
- Children—Use and dose must be determined by your doctor.
- For diabetes mellitus:
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Use & StorageTOP
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store in the refrigerator. Do not freeze.
Store unopened medicine in its original carton in the refrigerator until the expiry date. Do not freeze. Do not use the insulin if it has been frozen. You may also store the pen for 10 days or vial for 28 days at room temperature.
Store opened pens at room temperature for up to 10 days. Do not refrigerate. Store opened vials in the refrigerator or at room temperature for up to 28 days. Do not freeze.
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 this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of insulin lispro protamine and insulin lispro combination injection in the pediatric population. Safety and efficacy have not been established.
Although appropriate studies on the relationship of age to the effects of insulin lispro protamine and insulin lispro combination injection have not been performed in the geriatric population, geriatric-specific problems are not expected to limit the usefulness of this medicine in the elderly. However, elderly patients are more likely to have age-related heart, liver, or kidney problems which may require caution and an adjustment in the dose for patients receiving this medicine.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Although certain medicines should not be used together at all, in other cases two 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 this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Thioctic Acid
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Bitter Melon
- Guar Gum
- Methylene Blue
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
Other Medical ProblemsTOP
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Hypoglycemia (low blood sugar)—Should not be used in patients with this condition. If you have low blood sugar and take insulin, your blood sugar may reach dangerously low levels.
- Hypokalemia (low potassium in the blood)—Use with caution. May make this condition worse and increase your chance of having serious side effects.
- Infection or any illness or
- Stress (eg, physical or emotional)—Use with caution. These conditions increase blood sugar and may increase the amount of insulin you need.
- Kidney disease or
- Liver disease—Use with caution. The effects may be increased because of the slower removal of the medicine from the body.
It is very important that your doctor check your progress at regular visits, especially during the first few weeks you use this medicine. Blood and urine tests may be needed to check for unwanted effects.
Never share insulin pens or cartridges with others under any circumstances. It is not safe for one pen to be used for more than one person. Sharing needles or pens can result in transmission of hepatitis viruses, HIV, or other bloodborne illnesses.
It is very important to follow carefully any instructions from your health care team about:
- Alcohol—Drinking alcohol (including beer and wine) may cause severe low blood sugar. Discuss this with your health care team.
- Other medicines—Do not take other medicines during the time you are using this medicine unless they have been discussed with your doctor. This especially includes nonprescription medicines such as aspirin, and medicines for appetite control, asthma, colds, cough, hay fever, or sinus problems.
- Counseling—Other family members need to learn how to prevent side effects or help with side effects if they occur. Also, patients with diabetes may need special counseling about diabetes medicine dosing changes that might occur because of lifestyle changes, such as changes in exercise and diet. Furthermore, counseling on contraception and pregnancy may be needed because of the problems that can occur in patients with diabetes during pregnancy.
- Travel—Keep a recent prescription and your medical history with you. Be prepared for an emergency as you would normally. Make allowances for changing time zones and keep your meal times as close as possible to your usual meal times.
In case of emergency—There may be a time when you need emergency help for a problem caused by your diabetes. You need to be prepared for these emergencies. It is a good idea to:
- Wear a medical identification (ID) bracelet or neck chain at all times. Also, carry an ID card in your wallet or purse that says that you have diabetes and a list of all of your medicines.
- Keep an extra supply of insulin and syringes with needles or injection devices on hand in case high blood sugar occurs.
- Keep some kind of quick-acting sugar handy to treat low blood sugar.
- Have a glucagon kit and a syringe and needle available in case severe low blood sugar occurs. Check and replace any expired kits regularly.
This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a rash, itching, shortness of breath, swelling of the face, tongue, and throat, trouble breathing, or chest pain after you get the injection.
Using this medicine together with other diabetes medicine (such as pioglitazone, rosiglitazone, Actos®, Actoplus Met®, Avandia®) may cause serious heart problems or edema (fluid retention). Check with your doctor immediately if you are rapidly gaining weight, having chest pain or discomfort, extreme tiredness or weakness, trouble breathing, uneven heartbeat, or excessive swelling of the hands, wrist, ankles, or feet.
You may have some skin redness, rash, itching, or swelling at the injection site. If this irritation is severe or does not go away, call your doctor. Do not inject this medicine into a skin area that is red, swollen, or itchy.
Too much insulin lispro protamine and insulin lispro combination can cause hypoglycemia (low blood sugar). Symptoms of low blood sugar include anxiety, behavior change similar to being drunk, blurred vision, cold sweats, confusion, depression, difficulty in thinking, dizziness or lightheadedness, drowsiness, excessive hunger, fast heartbeat, headache, irritability or abnormal behavior, nervousness, nightmares, restless sleep, shakiness, slurred speech, and tingling in the hands, feet, lips, or tongue.
If symptoms of low blood sugar occur, eat glucose tablets or gel to relieve the symptoms. Also, check your blood for low blood sugar. Get to a doctor or a hospital right away if the symptoms do not improve. Someone should call for emergency help immediately if severe symptoms such as convulsions (seizures) or unconsciousness occur. Have a glucagon kit available, along with a syringe and needle, and know how to use it. Members of your household also should know how to use it.
Hyperglycemia (high blood sugar) may occur if you do not take enough or skip a dose of your antidiabetic medicine, overeat or do not follow your meal plan, have a fever or infection, or do not exercise as much as usual.
Symptoms of high blood sugar include blurred vision, drowsiness, dry mouth, flushed, dry skin, fruit-like breath odor, increased urination, ketones in urine, loss of appetite, stomachache, nausea, or vomiting, tiredness, troubled breathing (rapid and deep), unconsciousness, or unusual thirst.
If symptoms of high blood sugar occur, check your blood sugar level and then call your doctor for instructions.