Theofast CR

Theofast CR Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Theofast CR is a brand name. Its generic name is Theophylline.

Theofast CR

Theofast CR is a bronchodilator used to treat and prevent breathing problems in people who have asthma, chronic bronchitis, and emphysema. It relaxes the muscles that are found in the walls of the air passages in the lungs, allowing a person to breathe more freely.

Uses for

Theofast CR is used to treat airway narrowing caused by asthma, bronchitis, or emphysema. It may reduce the frequency and severity of asthma attacks and may improve a person's ability to exercise. It also may be used along with other medications to prevent attacks of bronchospasm.

Mechanism of Action

Theofast CR works by increasing the levels of cellular adenosine receptors, which results in the relaxing of smooth muscle cells in the airways. This relaxation helps to decrease inflammation, reduce swelling of the airways, and open the air passage in the lungs for easier breathing.

How Long Does it Take to Work?

The effects of theophylline can be felt within 30 minutes of taking it, and its full effects can be felt within 2 hours of taking it. However, it is important to note that different people may respond differently to the medication, and it may take some time to find the dose that works best for each individual.

Absorption

Theofast CR is absorbed from the gastrointestinal tract. Its absorption rate is variable and is affected by factors such as food intake and the formulation of the drug.

Route of Elimination

Theofast CR is eliminated primarily by the kidneys. It is also eliminated through the lungs and feces.

Dosage

Theofast CR comes in tablet, capsule, and extended-release or long-acting capsule forms. The recommended adult starting dose is 200–300 mg per day taken orally. This dose may be increased if necessary, depending on the individual response. If the tablet or extended-release capsule is used, the dose should be taken once daily; if the regular capsule is used, the dose may be divided into two or three doses a day.

Administration

Theofast CR should be taken as prescribed by your doctor. For best results, take it at the same time each day with or without food. If your doctor instructs you to take it twice a day, take it in the morning and in the evening.

Side Effect

Theofast CR may cause side effects such as nausea, headache, insomnia, rapid heart rate, and nervousness. If any of these side effects occur, contact your doctor immediately.

Toxicity

Theofast CR can be toxic if taken in high doses or if it is taken in combination with certain other medications. Symptoms of toxicity include nausea, vomiting, hypokalemia, hyperglycemia, and seizures.

Precaution

Theofast CR should be used with caution in people with kidney or liver disease, cardiovascular disease, or seizures. This drug should not be used in people who are allergic to it. Before taking theophylline, inform your doctor of any other medications or supplements you are taking so that potential interactions can be avoided.

Interaction

Theofast CR may interact with certain medications or supplements, including antacids, aspirin, diuretics, caffeine, and nicotine. Tell your doctor about all medications and supplements you are taking in order to avoid interactions.

Disease Interaction

Theofast CR should be used with caution in people with kidney or liver disease, cardiovascular disease, or seizures. This drug should not be used in people who are allergic to it.

Drug Interaction

Theofast CR may interact with certain medications or supplements, including antacids, aspirin, diuretics, caffeine, and nicotine. Tell your doctor about all medications and supplements you are taking in order to avoid interactions.

Food Interactions

Theofast CR may interact with certain types of food and beverages. It is important to check with your doctor before taking any kind of food or beverage when taking theophylline. Alcohol, grapefruit juice, and green tea are known to interact with this medication.

Pregnancy Use

The use of theophylline during pregnancy is not recommended unless it is deemed necessary by your doctor. Tell your doctor if you are pregnant or planning to become pregnant before taking this medication.

Lactation Use

The use of theophylline during breastfeeding is not recommended unless it is deemed necessary by your doctor. Tell your doctor if you are breastfeeding or planning to breastfeed before taking this medication.

Acute Overdose

If you overdose on theophylline, seek medical attention immediately. Symptoms of overdose may include seizures, confusion, tremors, increased heart rate, and breathing problems.

Contraindication

Theofast CR is contraindicated in individuals with known hypersensitivity to the drug.

Use Direction

Take theophylline exactly as prescribed by your doctor. Do not take more or less than prescribed. Do not take more than three doses in 24 hours. If you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take the next dose as scheduled. Do not take a double dose to make up for a missed one.

Storage Condition

Theofast CR should be stored at room temperature, away from moisture and heat. Keep out of reach of children. Do not keep outdated medication.

Volume of Distribution

The volume of distribution of theophylline is 0.7-0.9 L/kg.

Half Life

The half-life of theophylline is 4-11 hours.

Clearance

The clearance of theophylline is 1.5-4.5 mL/min/kg.

Here you find in details version of Theofast CR

Some Frequently Asked Questions About Theofast CR

What is Theofast CR?

Theofast CR is an FDA-approved bronchodilator medication used to treat asthma and other conditions that cause breathing difficulties. It is usually taken orally, and may also be given as an intravenous injection or inhaler.

What is the most common use of Theofast CR?

The most common use of Theofast CR is as a bronchodilator, used to treat asthma and other breathing difficulties.

What are the side effects of Theofast CR?

Common side effects of Theofast CR use include nausea, headache, insomnia, nausea, tremors, and gastrointestinal upset. More serious side effects include fast heart rate, confusion, and vision problems.

How long does it take for Theofast CR to start working?

Theofast CR should start working within one to two hours of taking the drug. Depending on the dose and form of Theofast CR taken, it can remain active in the body for up to six hours.

What are the risks of taking Theofast CR?

Theofast CR carries a risk of side effects, such as fast heart rate, confusion, hallucinations, blurred vision, nausea, tremors, and gastrointestinal upset. It is important to speak with a doctor before taking Theofast CR.

Is Theofast CR safe for use in children?

Yes, Theofast CR is safe for use in children when prescribed and administered correctly by a doctor. However, before giving Theofast CR to a child, it is important to speak with their doctor about the benefits and risks.

What are the dosage forms of Theofast CR available?

Theofast CR is available in a variety of dosage forms, including tablets, capsules, syrups, oral suspensions, intravenous injection, and inhalers.

How should I take Theofast CR?

Theofast CR should be taken with meals or snacks, as food may help reduce side effects. Take the medication at evenly spaced intervals as advised by your doctor. Do not double up on doses, and do not stop taking Theofast CR without talking to your doctor.

What should I do if I miss a dose of Theofast CR?

If you miss a dose of Theofast CR, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take only your regularly scheduled dose.

Is Theofast CR available over-the-counter?

No, Theofast CR is not available over the counter. It is a prescription medication and must be obtained through a doctor or other health care professional.

Are there any interactions between Theofast CR and other drugs?

Yes, Theofast CR can interact with other drugs, including certain over-the-counter medicines, herbal supplements, and other prescription medications. It is important to tell your doctor about all medications and supplements you are taking before taking Theofast CR.

Can I drink alcohol while taking Theofast CR?

It is not recommended to drink alcohol while taking Theofast CR, as alcohol can affect how the drug works and increase the risk of side effects.

Can I take Theofast CR while pregnant or breastfeeding?

It is not recommended to take Theofast CR while pregnant or breastfeeding, as the effects on fetal development or nursing infants are not known. If you are pregnant or breastfeeding and are taking Theofast CR, it is important to speak with your doctor.

What are the possible drug interactions of Theofast CR?

Taking Theofast CR with certain other medications can increase the risk of side effects, such as fast heart rate and confusion. It is important to tell your doctor about all medications and supplements you are taking before taking Theofast CR.

Can I take Theofast CR with other asthma medications?

Yes, Theofast CR can be taken with other asthma medications. However, it is important to speak with your doctor about the best treatment options, as certain asthma medications can interact with Theofast CR and increase the risk of side effects.

What should I avoid while taking Theofast CR?

It is important to avoid smoking while taking Theofast CR, as it can reduce the effectiveness of the drug. In addition, avoid alcohol and other medications that can interact with Theofast CR, such as over-the-counter medications and herbal supplements.

What should I watch for while taking Theofast CR?

It is important to watch for signs of an allergic reaction while taking Theofast CR, such as rash, hives, and difficulty breathing.You should also watch for signs of side effects from the drug, such as fast heart rate, confusion, and nausea.

Are there any over-the-counter medications that should not be taken with Theofast CR?

Yes, certain over-the-counter medications, such as antihistamines, cold and cough medications, and antacids, should not be taken with Theofast CR. It is important to speak with your doctor or pharmacist about which over-the-counter medications are safe to take with Theofast CR.

Do I need to be monitored while taking Theofast CR?

It is important to follow up with your doctor for regular monitoring while taking Theofast CR. This may involve monitoring for signs of side effects and possible drug interactions.

How long does Theofast CR stay in your system?

The amount of time Theofast CR stays in your system will vary depending on the dose and form taken; however, it usually remains active in the body for up to six hours.

Can I take Theofast CR if I have kidney disease?

It is not recommended to take Theofast CR if you have kidney disease, as the drug can accumulate in the body and cause serious side effects. If you have kidney disease and your doctor has prescribed Theofast CR, it is important to have close monitoring.

Can Theofast CR be used to treat COPD?

Yes, Theofast CR can be used to treat chronic obstructive pulmonary disease (COPD). It can help to improve breathing by relaxing the airways and allowing more air to pass through the lungs.

What is the standard dosage of Theofast CR?

The standard dosage of Theofast CR will vary depending on the condition being treated, the age and weight of the patient, and other medications being taken. It is important to closely follow your doctor’s instructions when taking Theofast CR.

Is Theofast CR the same as caffeine?

No, Theofast CR is not the same as caffeine. Theofast CR is an FDA-approved bronchodilator medication used to treat asthma and other breathing difficulties, while caffeine is a stimulant found in foods and beverages that can affect alertness and energy levels.

What are the common side effects of Theofast CR?

Common side effects of Theofast CR include nausea, headache, insomnia, nausea, tremors, and gastrointestinal upset. More serious side effects include fast heart rate, confusion, and vision problems.

Can I take Theofast CR with other medications?

Yes, Theofast CR can be taken with other medications, but it is important to tell your doctor about all medications and supplements you are taking before taking Theofast CR, as some drugs and supplements can interact and increase the risk of side effects.

What should I discuss with my doctor before taking Theofast CR?

Before taking Theofast CR, it is important to discuss your medical history and other medications and supplements you are taking with your doctor. This will help your doctor assess your suitability for Theofast CR and determine the best dosage for you.

Does Theofast CR have any drug interactions?

Yes, Theofast CR can interact with other drugs, including certain over-the-counter medicines, herbal supplements, and other prescription medications. It is important to tell your doctor about all medications and supplements you are taking before taking Theofast CR.

What are the long-term effects of taking Theofast CR?

Long-term use of Theofast CR can cause increased heart rate and irregular heart rhythm. It can also cause confusion, tremors, and irritability. It is important to discuss any potential long-term effects of Theofast CR with your doctor.

Does Theofast CR cause anxiety?

Yes, Theofast CR can cause anxiety in some cases. It is important to discuss any potential side effects of Theofast CR with your doctor before taking the drug.

Can I stop taking Theofast CR suddenly?

No, it is not recommended to stop taking Theofast CR suddenly. It is important to talk to your doctor before stopping Theofast CR, as suddenly discontinuing the drug can lead to serious side effects.

How long can I take Theofast CR for?

The length of time Theofast CR can be taken for will vary depending on the condition being treated. It is important to follow the instructions of your doctor and your pharmacist when taking Theofast CR.

Can Theofast CR be taken on an empty stomach?

No, Theofast CR should not be taken on an empty stomach, as food helps reduce side effects. Theofast CR should be taken with meals or snacks as advised by your doctor.

What foods should I avoid while taking Theofast CR?

It is important to avoid high-fat, caffeine-containing foods and drinks while taking Theofast CR, as these can reduce how well the drug works. It is also important to avoid alcohol while taking Theofast CR.

Can Theofast CR cause weight gain?

Theofast CR is not known to cause weight gain. However, it is important to talk to your doctor if you have any concerns about weight changes while taking Theofast CR.

How often can I take Theofast CR?

The frequency of taking Theofast CR will vary depending on the condition being treated, the dosage taken, and other factors. It is important to take Theofast CR as advised by your doctor and always remember to take it at evenly spaced intervals.

What is the best time of day to take Theofast CR?

The best time of day to take Theofast CR will vary depending on the form taken and the condition being treated. It is important to follow the instructions of your doctor and your pharmacist when taking Theofast CR.

Can I take Theofast CR if I have a fever?

Yes, Theofast CR can be taken if you have a fever. However, it is important to speak with your doctor before taking the drug, as certain illnesses can interact with Theofast CR and cause side effects.

Can Theofast CR cause dizziness?

Yes, Theofast CR can cause dizziness in some cases. If you experience dizziness while taking Theofast CR, it is important to tell your doctor so that the cause can be identified and treated.

Can Theofast CR be taken if I have heart problems?

Theofast CR can be taken if you have heart problems, but it is important to discuss the benefits and risks with your doctor before taking the drug, as certain heart conditions can interact with Theofast CR and increase the risk of side effects.

Can Theofast CR cause headaches?

Yes, Theofast CR can cause headaches in some cases. If you experience headaches while taking Theofast CR, it is important to tell your doctor so that the cause can be identified and treated.

Does Theofast CR interact with birth control?