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Vitamin D3 Injection FAQ's
Vitamin D3 Injection FAQ's

Frequently asked questions about vitamin D3 injections: their uses, side effects, and limitations.

Updated over a week ago

What is vitamin D3 injection used for?

Vitamin D3 injections are used to maintain adequate vitamin D3 levels in the body to maintain normal blood concentrations of calcium and phosphorus. Vitamin D also has effects on the immune, endocrine, and cardiovascular systems.

Hence, it is administered to patients with malabsorption diseases, e.g., Crohn's disease and fat malabsorption syndrome, to prevent vitamin D deficiency. Vitamin D deficiency is common, especially in older adults, people who live in northern latitudes or do not go outside, and people with darker-pigmented skin.

It is also given to people with kidney disease, rickets, osteomalacia, osteoporosis, and hypophosphatemia.

Can vitamin D3 be injected?

Yes, vitamin D3 can be injected. It is administered intravenously or via an intramuscular injection. Vitamin D injections are commonly used by physicians to deliver doses of the vitamin to individuals who need immediate elevation and maintenance of vitamin D serum levels.

However, physicians will not administer it to patients who are allergic to it or have high calcium or phosphorus levels in their blood.

How often should I inject vitamin D3?

The frequency with which you will be administering vitamin D3 injections depends on your physician's discretion and the severity of your deficiency. It is administered more frequently than ergocalciferol (Vitamin D2) due to its faster rate of absorption and better ability to elevate and maintain normal levels of vitamin D. levels, low blood.

One common dosage schedule is to administer vitamin D3 twice weekly for one week and then once a week for the next three weeks.

How quickly do vitamin D injections work?

Vitamin D injections begin to work immediately after they are administered. However, it has a lag time of 10 to 24 hours before the start of its actions.

Depending on the severity of your deficiency, it may take weeks before you notice an improvement in your clinical state and before your vitamin D levels return to normal. The cholecalciferol form of vitamin D is better and more potent than the ergocalciferol form. It is also better absorbed, elevates vitamin D levels to normal levels quicker, and maintains them for a longer period.

In severe vitamin D deficiency, it may take months before your symptoms alleviate. Obesity, genetic makeup, and baseline vitamin D levels are all factors that influence the speed at which the injections work.

In most cases, patients will notice improvements in their symptoms within a few days of beginning therapy.

Who needs a vitamin D injection?

Patients who need vitamin D injections are those with:

  • vitamin D deficiency

  • low blood calcium and phosphorus levels

  • malabsorption disorders

  • an inability to adhere to or take oral formulations

  • diseases that lower their blood levels of calcium or phosphorus or occur due to low blood calcium need vitamin D injections. Examples of these diseases are rickets, osteomalacia, osteoporosis, chronic kidney disease, and severe liver disorders.

In addition, patients on long-term therapy with medications that adversely affect them are also more potent. As a result, it is the preferred form when administering vitamin D injections. However, it is given more frequently than ergocalciferol due to its increased excretion rate.

Ergocalciferol is given intramuscularly, often in high doses. Generally, physicians administer ergocalciferol intramuscularly twice or three times a year. They give lower doses more frequently.

Also, physicians often administer cholecalciferol intravenously three times a week (every other day) to patients with chronic kidney disease. The frequent administration is because of the need for chronic renal dialysis.

How long do vitamin D injections last?

The duration of vitamin D injections in the body varies due to individual variations in vitamin D-binding proteins and genotypes. Vitamin D, on absorption into the blood, converts to the active hormonal form. It lasts months in the blood due to its ability to bind to vitamin D-binding proteins and albumin. Research has discovered that intramuscular injections of vitamin D last in the body for at least six months.

Is vitamin D injection better than oral?

Although both oral and vitamin D injections are effective for treating vitamin D deficiency, vitamin D injections work better. Unlike tablets, which must first be absorbed in the gut, they begin to exert clinical effects as soon as they enter the circulatory system.

It is easier for patients to adhere to and comply with treatment plans with vitamin D injections than oral formulations. Most patients cannot stick with an oral vitamin D supplement in the long term. After some time, they begin missing doses until they reach a point where they stop their regimen completely.

Vitamin D injections are also a more effective method of delivering vitamin D. Often, vitamin D injections are also more cost-effective than the long-term costs of taking oral doses.

What are the side effects of vitamin D injection?

Side effects of vitamin D injections occur as a result of taking excessive doses of the vitamin, leading to high serum calcium levels (hypercalcemia).

In the early phase of developing hypercalcemia, common side effects include nausea, vomiting, anorexia, abdominal pain, headache, and fatigue.

In the late phase, side effects include polydipsia, polyuria, weight loss, calcific conjunctivitis, decreased libido, hypertension, dehydration, photophobia, pruritus, and hyperthermia.

Report unusual body feelings to your doctor for a prompt evaluation to prevent the development of hypercalcemia.

Does vitamin D3 injection cause weight gain?

There is no evidence-based clinical research or practice that states that vitamin D3 injections cause weight gain. Instead, available research has been conflicting, and some have presented results for a few patient groups that cannot be generalized.

It is vitamin D3 deficiency that is linked to weight gain due to fatigue, depression, and the bone loss that it causes. Fatigue, depression, and bone loss encourage a sedentary lifestyle, a risk factor for weight gain. Also, weight gain due to obesity isolates vitamin D in fat cells. As a result, it makes it unavailable for the body to use.

Why would I need vitamin D injections?

You will require vitamin D injections if your vitamin D levels are low. Though patients with vitamin D deficiency can take vitamin supplements, they need the injection if they have chronic kidney disease, malabsorption of vitamin D, cannot swallow the supplements, or cannot adhere to long-term oral therapy.

Due to the need for immediate resolution of some symptoms of vitamin D deficiency, especially in severe cases, or an increase in the serum levels of calcium in therapy, your physician may place you on injections.

What are the signs you need vitamin D?

Most of the time, people have no symptoms and show no signs of vitamin D deficiency. However, if you are easily fatigued, have muscle weakness, have bone pains, or frequently experience mood changes, then something is wrong.

Other symptoms you may experience include poor sleep, hair loss, loss of appetite, depression, and frequent bone fractures.

Because the above signs and symptoms are common with other illnesses, your doctor will order a blood test and possibly an x-ray to determine if your vitamin D levels are within the normal range.

What is the difference between vitamin D and vitamin D3?

There is no difference between vitamin D and vitamin D3. Vitamin D is the collective term for all forms of vitamin D. The common forms are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol).

While ergocalciferol is found in plant sources and is formed when these plants are exposed to sunlight, cholecalciferol is found in animals and is produced by the human body when the skin is exposed to sunlight.

What not to take with vitamin D3?

Medications that reduce vitamin D3 absorption and/or accelerate its catabolism should not be taken with vitamin D3. These medications include:

  • Cholestyramine: Cholestyramine decreases the absorption of vitamin D as well as other fat-soluble vitamins.

  • Anticonvulsant medications: They increase the rate at which the body uses vitamin D.

  • Orlistat and olestra: These are weight loss products that act by preventing the absorption of fats in the body. Their actions reduce vitamin D absorption since vitamin D is fat soluble.

  • Calcium channel blockers: These medications may decrease the ability of the body to produce vitamin D.

  • Antacids: Chronic therapy with antacids may decrease the absorption and metabolism of vitamin D.

Other medications that lower the absorption of vitamin D include stimulant laxatives and steroids.

What destroys vitamin D3?

Heat, light, moisture, and oxygen during processing and storage destroy vitamin D3. Steaming, boiling, baking, sterilization, pressure cooking, and frying significantly reduce vitamin D3 levels in food.

Why would a doctor prescribe vitamin D3?

Doctors prescribe vitamin D3 to patients who are deficient in the vitamin. They would also prescribe it if their patients have malabsorption disorders, low blood calcium, osteoporosis, osteomalacia, hypoparathyroidism, chronic kidney disease, severe liver disorders, or obesity. Examples of malabsorption disorders include celiac sprue, cystic fibrosis, short bowel syndrome, and inflammatory bowel disease.

Similarly, doctors would also prescribe it to patients who have insufficient exposure to sunlight or genetic deficiencies with endogenous vitamin D receptors.

Furthermore, they prescribe it to patients who are unable to get enough of it from their diet, for example, vegetarians, and to patients on certain medications that either adversely affect vitamin D3 absorption or increase its catabolism in the body.

What are the negative effects of vitamin D3?

Negative effects of vitamin D3 arise when it is taken in excessive doses and causes hypercalcemia, which is increased blood calcium levels. These effects include:

  • nausea

  • anorexia

  • gastrointestinal disturbances

  • headache

  • fatigue

  • abdominal pain

  • heart arrhythmias

  • frequent urination

  • weight loss

  • excessive thirst

  • sensory disturbances

  • apathy

  • decreased libido

  • urinating at night

  • hyperthermia

  • high blood pressure.

Though rare, hypersensitivity (allergic) reactions may occur.

In the long term, kidney stones, nephrocalcinosis, and calcific conjunctivitis can also occur.

What happens to your body when you start taking vitamin D3?

Once you start taking vitamin D3, your body’s serum calcium and phosphorus concentrations will begin to return to normal levels. As vitamin D3 strengthens your bone health, it also boosts the immune system and participates in gene transcription that enhances the optimal functioning of the body systems.

Vitamin D3 strengthens the bones by promoting intestinal calcium and phosphorus reabsorption, promoting kidney calcium reabsorption, increasing mobilization of calcium and phosphorus from bone to the bloodstream to maintain the balance of calcium and phosphorus in the bones and the bloodstream, and positively enhancing the regulatory role of parathyroid hormone.

With time, the body becomes capable of reducing vitamin D deficiency symptoms and halting the progression of illnesses that are brought on by or resulting from it.

What organs does vitamin D3 affect?

Vitamin D3 affects all organs in the body. Due to its role in gene transcription, it affects cell formation, differentiation, and proliferation. Vitamin D3 also regulates the immune system and prevents high blood pressure, inflammatory bowel disease, rheumatoid arthritis, diabetes, and other infectious diseases.

Researchers have discovered that vitamin D plays a significant role in preventing cancers as a result of its role in cell maturation, inducing cell death, and inhibiting the formation of new blood cells.

Can vitamin D3 cause kidney damage?

Both vitamin D3 deficiency and toxicity can result in acute and chronic kidney damage.

A lack of vitamin D3 damages the kidneys by increasing the activity of the renin-aldosterone-angiotensin system (RAAS). The increased activity of RAAS causes water retention in the kidneys, which leads to kidney injury.

Vitamin D3 toxicity causes hypercalcemia. Hypercalcemia damages the kidneys by constricting the vessels that supply blood to the nephrons (tiny filtering units in the kidney) and causing infrequent and low-volume urination.

Can too much vitamin D3 cause liver problems?

Although too much vitamin D3 is known to have several negative effects on various body organs and cause signs and symptoms, it is not known to harm the liver or cause abnormal liver tests.

Does D3 cause kidney stones?

Kidney stones are a result of excess vitamin D3, causing hypercalcemia. Hypercalcemia causes a reduction of blood flow to the kidneys, resulting in infrequent and low-volume urine. The low volume of urine promotes the formation of kidney stones by crystallizing crystal-forming substances like calcium, uric acid, and oxalates.

Does D3 supplement cause kidney stones?

High doses of D3 supplements can cause kidney stones. By causing hypercalcemia, vitamin D3 reduces urine output and urination frequency while enhancing the deposition of crystals in the kidney and, as a result, the formation of kidney stones.

Slow-flowing urine that is saturated with excess calcium provides an ideal environment for kidney stones.

How much vitamin D3 should a woman take daily?

The National Institutes of Health recommends that women should take 600 IU of vitamin D3 daily. Older women aged 71 years and older should take 800 IU daily.

The recommendations also propose that women with a high risk of vitamin D deficiency may need more.

Which food has vitamin D?

Natural foods that contain vitamin D include fatty fish such as salmon and mackerel, beef liver, cheese, egg yolks, and mushrooms.

Other foods that are often fortified with vitamins are milk, breakfast cereals, soy drinks, and yogurt.

Can we take vitamin D injections daily?

Yes, you can take vitamin D injections daily. Your physician will determine the frequency and dose you will be taking after the clinical examination.

Your physician may recommend daily doses of vitamin D injections if there is a need for immediate elevation of vitamin D blood levels. Daily doses of vitamin D injections are mostly given intravenously. This is because it is the route that delivers vitamin D directly into the bloodstream, as opposed to the intramuscular route, which must first pass through the muscular layers.

Generally, physicians administer the injection intramuscularly to those who need chronic vitamin D therapy, are deficient in the vitamin, and are unable to adhere to or take oral supplements.

Is it good to take vitamin D injections?

It is good to take vitamin D injections, especially when you are deficient in the vitamin and are not getting enough from your diet or oral therapy.

Also, if you are unable to adhere to long-term oral therapy, taking the injections is best for you.

If you decide to get vitamin D injections, you should talk to your physician to determine the need, dose, and frequency of administration.

Where do you take vitamin D injections?

Vitamin D injection is administered either intravenously or intramuscularly.

An intravenous treatment of vitamin D is done by injecting it slowly into a vein or through an intravenous line in the antecubital fossa of the arm, where it is infused into the body through an intravenous bag. If you are right-handed, the injection would be administered in your left arm, and vice versa.

Intramuscularly, it is injected slowly into the deltoid muscle of the shoulder, the thigh, or the upper outer quadrant of the buttocks.

Why is vitamin D taken once a week?

You can take vitamin D supplements or injections daily, alternate days, weekly, monthly, or yearly. The frequency of administration depends on your treatment goals, vitamin D levels, clinical condition, the form of vitamin D, and route of administration.

There is no evidence-based clinical guide that states you must take it once a week. Talk to your physician to get more insight into your treatment plan. Also, speak to him or her if you desire a change in dosage frequency.

How long should vitamin D3 be taken?

Your physician will determine how long you will take vitamin D3.

His or her decision would be influenced by your clinical state, vitamin D blood levels, and treatment goals.

If you suffer from vitamin D malabsorption syndrome or have chronic kidney disease, you would take it for a very long time. Similarly, if you live in a geographical location where you do not have access to adequate sunlight, like in the polar regions of the world, you may have to take vitamin D3 supplements for a greater portion of your life.

Who needs vitamin D3?

People at risk of vitamin D3 deficiency need vitamin D3. These include patients with fat malabsorption diseases, obesity, and those who do not have adequate exposure to sunlight.

Also, patients with osteomalacia, osteoporosis, osteopenia, chronic kidney disease, and severe liver dysfunction need vitamin D3.

Additionally, persons with darkly pigmented skin, inadequate vitamin D in their diet, and previous gastric bypass surgery need vitamin D3 supplementation.

What are the risks of taking vitamin D3?

There are no risks to taking vitamin D3 in recommended amounts.

It only poses great risks when taken in excess. Excessive doses of vitamin D3 cause a very high accumulation of calcium in the blood (hypercalcemia). Hypercalcemia affects all body systems adversely. It damages the kidneys and causes heart arrhythmias, gastrointestinal disturbances, frequent urination, hyperthermia, weight loss, and calcification of soft tissues, among others.

Who should not take vitamin D3?

Patients with allergic reactions to vitamin D should not take vitamin D3. Also, patients who have high levels of calcium in their blood, high levels of vitamin D in their body, fat malabsorption diseases, high levels of phosphate in their blood, kidney stones, kidney dysfunction, or sarcoidosis should not take vitamin D3.

Is vitamin D3 good for the skin?

Though the role Vitamin D3 plays in ensuring the optimal health of the skin has not been fully elucidated, it is good for the skin. It plays a variety of roles in ensuring optimal skin health. For example,

  • The topical application of vitamin D3 provides protection against photodamage caused to the skin by ultraviolet rays. As a result, it is used as a sunscreen.

  • It has been found beneficial in aiding wound healing and preventing the development and progression of various skin diseases, including atopic dermatitis, psoriasis, and malignancies.

In addition, Vitamin D3 plays a vital regulatory role in skin cells' proliferation, differentiation, and death, as well as their ability to continually act as a barrier to the entrance of foreign substances into the body.

When is the best time to take vitamin D3?

The best time to take vitamin D3 is when it fits your schedule. Oral vitamin D3 supplements are best with a fatty meal to speed up its absorption in the gut. This is because vitamin D3 is a fat-soluble vitamin.

What are the 2 types of vitamin D3?

Vitamin D3 (cholecalciferol) is one of the two forms of vitamin D commonly used in clinical practice. The other is vitamin D2 (ergocalciferol). Cholecalciferol is the form found in animals. It is produced when the skin is exposed to ultraviolet rays. Compared to ergocalciferol, it is more easily absorbed by the body and elevates and maintains serum vitamin D better. Ergocalciferol is found in certain plants and is formed when these plants are exposed to ultraviolet rays.

Which fruit is rich in vitamin D?

Naturally, fruits contain trace amounts of vitamin D. Most fruits do not have it. But you can take fruits fortified with it. An example is fortified orange juice. The best way to get vitamin D is by exposing your skin to the sun’s ultraviolet rays. Naturally, your skin can synthesize enough vitamin D and destroy any excess.

What diseases cause vitamin D deficiency?

Diseases that can cause vitamin D deficiency include the following:

  • Malabsorption disorders: e.g., fat malabsorption syndrome, Crohn's disease, celiac sprue, and cystic fibrosis.

  • Obesity: Obesity causes vitamin D deficiency because it causes fat cells to keep the vitamin isolated rather than making it available in the blood.

  • Kidney and liver disorders: These diseases reduce the levels of the enzymes: hepatic 25-hydroxylase and renal 1-alpha-hydroxylase the body needs to change vitamin D to the active form that it can use.

  • Genetic disorders of the vitamin D receptor: Genetic disorders of the vitamin D receptor inhibit the formation of the active form of vitamin D in the kidneys. Consequently, it leads to the development of early onset rickets, hypocalcemia, and secondary hyperparathyroidism.

Which vegetable is high in vitamin D?

Besides fortified foods, mushrooms are the only non-animal sources of vitamin D. Currently, no vegetable has been discovered to be rich in vitamin D. Fortified foods, meat, fish, and dairy products are the most common sources of vitamin D.

Is two eggs a day enough vitamin D?

The International Egg Commission states that a serving of 2 eggs provides the body with about 82% of its daily requirements for vitamin D. So, eating two eggs a day is not enough.

You should not focus on a single source to get your daily dietary allowance of vitamin D. Variety is better.

How can I raise my vitamin D level quickly?

The most effective way to raise your vitamin D levels quickly is by taking an intravenous injection of vitamin D3 (cholecalciferol). Cholecalciferol is better is absorbed, elevates, and maintains vitamin D blood levels better than other forms of the vitamin. It is often used in severe conditions of the disease where there is an immediate need to increase blood levels of vitamin D. Otherwise, oral supplementation or intramuscular doses of the injection are enough.

Which vitamins cause kidney stones?

High doses of vitamin C and vitamin D are known to cause the formation of kidney stones.

Vitamin C is partially converted to oxalate crystals and excreted in the urine. High doses increase the risk of calcium oxalate stones forming in the kidney.

Excess vitamin D increases the blood levels of calcium significantly, thereby causing hypercalcemia. Hypercalcemia causes kidney stones by promoting the crystallization of salts in the urine as a result of its actions in decreasing renal blood flow and reducing the ability of urine to dilute these salts as they form.

What are the 3 signs of kidney stones?

Signs of kidney stones include swollen kidneys, ureteral spasms, infrequent urination, and low-volume urine.

Patients frequently report having intense, stabbing pain in their side, back, and below the ribs. The pain frequently comes in waves, varies in severity, and often radiates to the groin and lower abdomen.

Additionally, they can feel pain or burning while urinating, as well as foamy or smelly urine that could be pink, red, or brown.

What vitamin keeps kidney stones away?

Vitamins A, E, K, and B help keep kidney stones away. Primarily, they act to prevent the formation of crystal-forming substances in the kidney. Also, they inhibit the crystallization of these stones.

For example, vitamins E and K prevent the deposition of calcium oxalate stones in the kidneys. Also, vitamin A increases urinary pH and enhances the excretion of citric acid.

What supplements should I take to prevent kidney stones?

The supplements you can take to prevent kidney stones include calcium citrate, citric acid supplements, vitamin B6 supplements, magnesium supplements, selenium, and potassium citrate.

For example, citrate supplements reduce the risk of the formation of kidney stones because they increase the excretion of citrate in the urine. Also, magnesium supplements prevent kidney stones by inhibiting the crystallization of calcium oxalate crystals.

In addition, water plays a key role in preventing the formation of kidney stones. The volume of water in urine has an impact on the formation of kidney stones. Staying hydrated allows the body to produce an adequate volume of water in the urine that dilutes and prevents the deposition, precipitation, and crystallization of crystal-forming substances in the urine.

How can I permanently get rid of kidney stones naturally?

The best way to permanently get rid of kidney stones is to ensure you do not have one. You do this by ensuring you are always hydrated. Also, avoid taking too much vitamin C, vitamin D, and salt. You can also aid the body in getting rid of kidney stones by taking supplements that aid in kidney stone removal. These supplements include potassium citrate, calcium citrate, magnesium, and vitamin B6.

Is coconut water good for kidney stones?

Though more research is needed, coconut water is good for kidney stones. Research by Patel and his team on coconut water as a source of urinary citrate concluded that coconut water increases urinary potassium, chloride, and citrate in people without kidney stones without changing the pH of their urine.

Also, a study in rats discovered that it inhibited crystal deposition in renal tissue as well as reduced the number of crystals in urine.

What is the best drink for kidney stone removal?

Water is the best drink for kidney stone removal. While aiding in the removal of kidney stones, it dilutes the urine, thus making it harder for kidney stones to form.

Every day, drink enough water to produce light-colored urine and at least two liters of urine. While doing this, lower your intake of coffee, tea, cola, and caffeine.

What foods help repair kidneys?

Due to the nature of kidney diseases, you need a dietitian to help you decide which foods best suit your ailing kidney.

Examples of foods that help repair the kidneys include:

  • Fruits: berries, bananas, avocados, grapes, cherries, apples

  • Vegetables: arugula, cauliflower, cabbage, onions, turnips, eggplant

  • Proteins: lean meats, skinless meats, eggs, macadamia nuts

  • Carbohydrates: bulgur, buckwheat,

  • Carbs: white bread, bagels, sandwich buns, pasta

  • Drinks: water, soda-free drinks, unsweetened tea

Is carrot high in vitamin D?

Carrots do not contain vitamin D. However, carrots are rich in beta-carotene, vitamin A, B vitamins, vitamin K, and potassium. Generally, plants are a poor source of vitamin D, except for mushrooms.

How many vitamin D injections do I need?

The number of vitamin D injections you need depends on your clinical state, treatment goals, vitamin D baseline levels, the form of the vitamin to be administered, the route of administration, and serum calcium levels.

Vitamin D exists principally in two forms: cholecalciferol and ergocalciferol.

Cholecalciferol, the form in which Vitamin D exists in the human body, is better at raising and maintaining vitamin D levels in the bloodstream. It is also more potent. As a result, it is the choice form when administering vitamin D injections. However, it is given more frequently than ergocalciferol due to increased excretion rate.

Ergocalciferol is given intramuscularly, often in high doses. Generally, physicians administer ergocalciferol intramuscularly two or three times a year. They give lower doses more frequently.

Also, physicians often administer cholecalciferol intravenously three times a week (every other day) to patients with chronic kidney disease. The frequent administration is because of the need for chronic renal dialysis.

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