IsoniazidGeneric Alternative to Isoniazid
What is a generic medication?
Generic medications are significantly discounted copies of brand name medication that have the same active ingredients, intended use, dosage, side effects, effects, and route of administration as the original brand name medication. In other words, generic medications have the same pharmacological effects as their brand-name counterparts. Over half of all prescribed medications are for generic medications.
Isoniazid Drug Information
Are you paying too much for Isoniazid? Save up to 80% when purchasing your prescription drugs from Universal Drugstore. Our prescription service aspires to conveniently provide you with affordable medications at the lowest prices in Canada and internationally.
We’re working with a number of Canadian and international pharmacy partners, all licensed by their qualified governmental regulatory bodies. By collaborating with our partners, we are able to offer a wide range of brand and generic medications at very competitive prices. You can obtain discount prescription drugs through our online pharmacy. Our prices are already up to 80% lower than your local pharmacy. We are committed to providing you with the best service and prices. This is why we’ll match the price of any of our online pharmacy competitors who require a valid prescription.
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Why Buy Isoniazid from Universal Drugstore?
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How Long Does It Take to Receive My Isoniazid Order?
You can easily place an order on our website in under 5 minutes. First you need to set up an account with us, create a payment method, and send us your prescriptions. Alternatively, you can order by downloading our order form or by placing an order over the phone. Delivery can take approximately 2 weeks to North America, and 4 weeks to other countries.
Isoniazid is used with other medications to treat active tuberculosis (TB) infections. It is also used alone to prevent active TB infections in people who may be infected with the bacteria (people with positive TB skin test). Isoniazid is an antibiotic and works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.
Isoniazid has rarely caused very serious (possibly fatal) liver disease. The risk of liver disease is increased in people who are 35 years and older, who use alcohol or illegal injection drugs, or who currently have long-term liver problems. Tell your doctor right away if you develop symptoms of liver disease, including nausea/vomiting that doesn't stop, severe stomach/abdominal pain, unusual weakness/tiredness, dark urine, yellowing eyes/skin. Your doctor should order liver function tests while you are taking Isoniazid. Keep all medical and laboratory appointments.
How to Use Isoniazid
Take Isoniazid by mouth on an empty stomach (1 hour before or 2 hours after meals) as directed by your doctor. If you are using the liquid form of Isoniazid, carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose. If you also take antacids that contain aluminum, take Isoniazid at least 1 hour before the antacid. Dosage of Isoniazid is based on your age, weight, medical condition, and response to treatment. For the best effect, take Isoniazid at evenly spaced times. If you are taking Isoniazid daily, take it at the same time each day. If you are taking Isoniazid on a weekly schedule, take it on the same day(s) of the week and at the same time each day. Mark the days on the calendar when you need to take the medication. Continue to take Isoniazid (and other TB medications) until the full prescribed amount is finished, even if symptoms disappear. Stopping the medication too early or skipping doses may allow the bacteria to continue to grow, which may result in a return of the infection and cause the infection to be more difficult to treat (resistant). Your doctor may also direct you to take vitamin B6 (pyridoxine) to help prevent certain side effects (such as nerve problems) from isoniazid. Follow your doctor's instructions carefully. Isoniazid may interact with foods containing tyramine/histamine (such as cheese, red wine, certain types of fish). This interaction may cause increased blood pressure, flushing of the skin, headache, dizziness, or fast/pounding heartbeat. Tell your doctor right away if any of these symptoms occur. Your doctor may recommend that you follow a special diet while taking Isoniazid. Consult your doctor for more details. Tell your doctor if your condition lasts or gets worse.
Before taking isoniazid, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Isoniazid may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using Isoniazid, tell your doctor or pharmacist your medical history,previous severe reaction from isoniazid (such as liver disease), liver disease, alcohol use, HIV infection, kidney disease, diabetes, numbness/tingling of arms/legs (peripheral neuropathy), recent childbirth. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Alcohol may increase the risk of liver disease. Avoid alcoholic beverages while using Isoniazid. Isoniazid may cause live bacterial vaccines (such as BCG vaccine) to not work well. Tell your health care professional that you are using Isoniazid before having any immunizations/vaccinations. Liquid forms of Isoniazid may contain sugar. Caution is advised if you have diabetes or any other condition that requires you to limit/avoid sugar. Ask your doctor or pharmacist about using Isoniazid safely. During pregnancy, Isoniazid should be used only when clearly needed. Discuss the risks and benefits with your doctor. Isoniazid passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.
It is important to take each dose of Isoniazid as scheduled. If you are taking Isoniazid daily and miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up. If you are taking Isoniazid on a weekly schedule and miss a dose, take it as soon as you remember if it is on the same day. If you remember on the next day or later, ask your doctor or pharmacist right away for a new dosing schedule. Do not double the dose to catch up.
See also How to Use section. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.acetaminophen, certain azole antifungals (itraconazole, ketoconazole), disulfiram, MAO inhibitors (isocarboxazid, linezolid, metaxalone, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine), phenytoin, SSRI antidepressants (such as fluoxetine, sertraline), valproic acid. Isoniazid may interfere with certain laboratory tests (including urine glucose tests), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use Isoniazid.
Isoniazid Side Effects
What are Isoniazid side effects?
Side effects are physical, mental or emotional symptoms which occur in addition to or outside of the desired effect of a therapeutic treatment such as an over-the-counter or prescribed drug or medication. Side effects from Isoniazid may occur at the beginning or at the end of treatment and may also depend on the length of time an individual remains on the treatment. Side effects, also known as adverse effects, are generally more likely to occur when starting treatment. Individuals may also experience side effects from Isoniazid as a result of an interaction with other medications.
Side Effects of Isoniazid
The side effects of Isoniazid may vary in number and intensity for many different reasons. Factors such as age, weight, gender and ethnicity may influence the side effects of Isoniazid. Also, an individual’s state of general physical health and seriousness of the disease or illness as well as an increase or decrease in dosage may lead to side effects. Further, side effects from Isoniazid may also occur as a result of an interaction with certain herbal supplements, foods or drinks.
Prescription drug side effects can be serious and may cause patients to stop the treatment. However, when side effects from the use of a prescription drug, such as Isoniazid, do occur a patient should consult their physician. A physician may prescribe an additional treatment in order to control the symptoms or an adjustment in the dosage may be made. In addition, changes to diet, exercise or other lifestyle activities may help to lessen the side effects of Isoniazid.
By understanding side effects and the factors which may influence the occurrence of side effects patients are empowered to take an active role in their care. Patients who have specific questions about the side effects of Isoniazid, or any other medication, should contact their physician. General information about Isoniazid and the side effects associated with Isoniazid are described in the following:
Common Isoniazid Side Effects
- peripheral neuropathy
- pyridoxine deficiency
Less Frequent Isoniazid Side Effects
- abnormal hepatic function tests
- gastrointestinal irritation
Rare or Very Rare Isoniazid Side Effects
- metabolic acidosis
- hemolytic anemia
- aplastic anemia
- thrombocytopenic disorder
- CNS toxicity
- optic neuritis
- allergic dermatitis
- lupus-like syndrome
- drug fever
- skin rash
- Stevens-Johnson syndrome
- toxic psychosis
- seizure disorder
- DRESS syndrome
- toxic epidermal necrolysis
- optic atrophy
- hypersensitivity drug reaction
- bronchospastic pulmonary disease
- memory impairment
- neutropenic disorder
- flu-like symptoms
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard Isoniazid when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
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