Types of chemotherapy doses: It is one of the most important medical methods used to fight cancer, and doctors rely on it widely due to its ability to target cancer cells and limit their spread. The methods of using this treatment vary from one patient to another depending on his health condition, the type of tumor, and the extent of its progress. The specialized doctors within Al Mousa Health Hospital determine the doses with great care in proportion to the needs of each case to ensure the best possible results.

What are the types of chemotherapy doses?

The types of chemotherapy doses vary according to the purpose of their use, the type of tumor, and the patient’s condition. They are classified into several main types, each of which has a different therapeutic goal and a specific method of administration. Below we mention the most important types of these doses:

• Introductory dose: It is given before surgical intervention or radiotherapy with the aim of reducing the size of the tumor, which facilitates its eradication and increases the effectiveness of subsequent treatment.
• Adjuvant dose: It is used after completing surgery or radiotherapy with the aim of eliminating cancer cells that may still be in the body and reducing the possibility of the cancer returning again.
• Therapeutic dose: It aims to completely eliminate the cancer and is used when there is a chance of complete recovery based on the type and stage of the tumor.
• Palliative dose: It is used in advanced cases of cancer when cure is not possible and aims to reduce symptoms, relieve pain and improve quality of life.

What is the effectiveness of chemotherapy?

The effectiveness of chemotherapy doses is a relative issue that varies from one patient to another, and depends on several overlapping factors, including the type of cancer, its stage, the body’s response to treatment, and the extent of the patient’s commitment to the treatment plan. The following is a detailed explanation of the factors that affect the effectiveness of chemotherapy:

Its effectiveness depends on the type of cancer

•  Some types of cancer show a high response to chemotherapy, such as leukemia, lymphoma, testicular cancer, and some cases of breast cancer.
•  While there are other types whose response is less clear, such as pancreatic cancer and some brain tumors, which affects the degree of effectiveness of chemotherapy.

Its effectiveness depends on the stage of cancer

If the cancer is discovered at an early stage, chemotherapy has a major role in achieving complete recovery, especially if it is used after surgery to eliminate any remaining cells. However, in advanced cases, the goal of chemotherapy is to slow the growth of the tumor, reduce symptoms, and improve the quality of life, even if complete recovery is not possible.

Its effectiveness within an integrated treatment plan

The effectiveness of chemotherapy increases when it is used in combination with surgery, radiation therapy, or immunotherapy, as this contributes to achieving better results and reducing the risk of relapse. Often, more than one type of chemotherapy is used together to achieve the greatest possible response.

Its effectiveness depends on the body's response

The body's response to treatment varies from one person to another. Some patients show a clear improvement in the size of the tumor after a few doses, while others need to modify the treatment plan or change the types of medications due to poor response.

Its effectiveness in light of side effects

If the patient is able to tolerate the side effects and continue to receive the prescribed doses on a regular basis, the chances of the success of chemotherapy increase. However, if serious complications occur that require stopping treatment or reducing the dose, this may lead to a reduction in its effectiveness.

You can see the article Cancer spreads during chemotherapy؟

You can book an appointment through Al-Moussa Specialized Hospital to find out which types of chemotherapy doses are appropriate for you and develop the appropriate treatment plan for that, as it provides مركز الاورام The best specialists in cancer treatment

What are the forms of chemotherapy?

Chemotherapy takes several different forms that are chosen based on the type of cancer, its stage, the extent of its spread in the body, and the patient’s general condition. The specialist doctor determines the most appropriate form for each case according to a well-studied treatment plan. Below we mention the most important of these forms:

Oral chemotherapy

• It is taken orally in the form of tablets or capsules and is used in certain types of cancer whose nature allows treatment outside the hospital.
• It is easy to use, but requires strict adherence from the patient to the dose and time to ensure its effectiveness.

Intravenous chemotherapy

• It is given directly into a vein via a needle or catheter and is often done inside a hospital or medical center under the supervision of the medical team.
• This form is the most common among chemotherapy methods, and the duration of administration varies from minutes to hours depending on the type of drug used.

Intramuscular injection

• The medicine is injected into a muscle of the body, such as the arm or buttocks.
• This form is used in limited cases when other methods cannot be used.
• It is characterized by its rapid absorption and local effectiveness.

Subcutaneous injection

• The medicine is injected into the fatty tissue beneath the skin. 
• This method is used with some medications that require a slow and gradual release into the body.

Injection into cerebrospinal fluid

• Also known as lumbar puncture, it is used in cases where the cancer has spread to the central nervous system, such as the brain or spinal cord.
• The medicine is injected directly into the cerebrospinal fluid to ensure it reaches those sensitive areas and prevent the spread of the tumor there.

Topical treatment

• It is used to treat some types of superficial cancer, such as skin cancer. The medicine is applied in the form of a cream or ointment directly to the affected area.

Regional chemotherapy

• The medication is given directly into a specific area of ​​the body that contains the tumor, such as the liver, bladder, or abdominal cavity.
• This type aims to concentrate the drug in the location of the tumor and reduce its effects on the rest of the body's organs.

Get to know Symptoms of cancer What are its causes?

What are the side effects of chemotherapy?

Chemo doses are one of the most powerful methods of fighting cancer, but on the other hand, they cause a group of side effects because they do not distinguish between cancer cells and healthy cells, especially cells that divide rapidly, such as cells in the hair, skin, digestive system, and bone marrow. The severity of these symptoms varies from one person to another depending on the type of medication, its dose, and the patient’s health condition. The most important of these symptoms are the following:

• Hair loss: One of the most well-known effects of chemotherapy, as it causes hair follicles to weaken and gradually fall out, and may return to growth after the end of treatment.
• Nausea and vomiting: These are very common symptoms and their severity varies depending on the type of medication and are usually treated with anti-nausea medications given along with the treatment.
• Extreme fatigue: The patient feels constant fatigue and weakness in general activity as a result of the effect of the chemotherapy on blood and energy cells.
• Low blood cells: Chemotherapy may result in low white blood cells, which increases the risk of infection, or low red blood cells, causing anemia or low platelets, which increases the possibility of bleeding.
• Mouth ulcers: Sometimes painful ulcers appear in the mouth and throat as a result of the treatment’s effect on the mucous membranes and may affect eating and speech.
• Anorexia: The patient may suffer from a change in sense of taste or loss of desire for food due to the effect of the drug on the digestive system.
• Diarrhea or constipation: Digestive disorders occur due to the effect of medications on the intestinal lining
• Changes in the skin and nails: Inflammation, dryness, or a change in the color of the skin and nails may appear, and the nails may become weak and break quickly.
• Effects on fertility: Some chemotherapy drugs may affect reproductive ability, whether in women or men, and may be temporary or permanent.
• Psychological and mood changes: Some patients feel anxious, depressed, or stressed as a result of the psychological and physical stress resulting from treatment
• Problems with concentration and memory: Some patients complain of what is known as brain fog or slow thinking and concentration during the treatment period.
• Effects on the heart, kidneys, or liver: In certain cases and with specific medications, effects may occur on vital organs, which is why the body’s functions are monitored during the treatment period.

Tips during chemotherapy

During the chemotherapy treatment period, the patient needs to follow a set of important tips that help him alleviate side effects, enhance the effectiveness of treatment, and maintain his general health. Below we mention a set of guidelines that are recommended during this stage, which include the following:

•  You should eat balanced meals rich in vitamins and proteins and drink sufficient amounts of water. 
• It is preferable to avoid fried and fatty foods, reduce sugars, and focus on vegetables, fruits, and easy-to-digest foods.
•  It is recommended to get enough sleep and rest during the day because the body needs energy to recover. 
• It is preferable to avoid excessive physical exertion or constant fatigue.
•  You must adhere to all follow-up appointments, tests, and medical examinations because the doctor monitors the extent of the body’s response to treatment and adjusts the doses if necessary.
•  You should avoid crowded places, wash hands regularly, and avoid contact with people with contagious diseases due to decreased immunity during treatment. 
• It is recommended to use personal tools and not share food or drinks with others.
• The mouth should be cleaned regularly using a soft brush and alcohol-free mouthwash to reduce the possibility of developing mouth ulcers or infections.
• If possible, the hair can be gradually shortened to reduce the psychological impact, while considering using a head covering or synthetic hair if necessary.
• Practicing simple physical activity, such as walking, helps stimulate blood circulation and improve your mood, but exercise must be under the supervision of a doctor and in proportion to the body’s energy.
• It is noteworthy that talking with friends, family members, or a psychologist reduces stress and anxiety and helps the patient adapt to treatment, and joining cancer support groups may have a significant positive impact.
• It is absolutely recommended to completely abstain from smoking or drinking alcohol because they weaken the immune system and negatively affect the effectiveness of treatment.

Frequently asked questions 

How many doses of chemotherapy for cancer?

The number of chemotherapy doses for cancer patients varies from one case to another, and depends on the type of tumor, its stage, its location in the body, the patient’s response to treatment, his general health condition, the treatment protocol used, and other factors such as age, weight, and periodic tests. The doses may be three, six, or more, and their timing ranges from one week to three, according to the treating physician’s plan.

What are the names of chemotherapy injections?

The names and dosages of chemotherapy injections vary according to the type and severity of cancer, and include popular medications such as cisplatin, doxorubicin, cyclophosphamide, fluorouracil, paclitaxel, carboplatin, etoposide, vincristine, gemcitabine, topotecan, adriamycin, Aracete C, Taxotere, methotrexate, temozolomide, trastuzumab, and Technetium in some protocols and are used according to a plan determined by the doctor according to each case.

What are the types of chemotherapy tablets?

Chemotherapy tablets include different types used depending on the type and severity of the tumor. These types include capecitabine, temozolomide, lenalidomide, imatinib, tamoxifen, anastrozole, lotrozole, sorafenib, erplusinib, olaparib, vinorelbine, bosutinib, and rifosinib. These medications are used in cases such as breast, brain, blood, and colon cancer and are taken under close medical supervision and according to a specific dose.

At the end of the discussion about the types of chemotherapy and doses, it becomes clear that determining the type and quantity of the dose is not done randomly, but rather depends on a comprehensive assessment of the patient’s condition, his response to treatment, and the extent of the disease’s development. Continuous communication with the medical team within Al Mousa Health Hospital and commitment to the treatment plan remain among the most important factors for the success of the treatment and achieving positive results that contribute to improving the patient’s life and his progress towards recovery.

Medical references 

Chemotherapy Drugs

Low Dose vs High Dose Chemotherapy: Advantages and Effectiveness