- Abdominal discomfort and pain
- Coughing, with phlegm, not associated with a cold or flu
- Abnormal liver function tests
- Muscle disorders (including muscle pain and cramps)
Tell your doctor immediately if you notice any of the following:
- Swelling of the lips/mouth
- Difficulty in breathing
- Hay fever
Not everyone experiences these side effects. In addition, there may be other side effects not listed above. If you have any concerns about a side effect, please consult your doctor or pharmacist.
What drugs may interact with Zeffix?
Zeffix may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects.
To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs, and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.
Here are some medications may interact with Zeffix, such as:
Does food or alcohol interact with Zeffix® (Lamivudine)?
Zeffix may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.
What health conditions may interact with Zeffix?
Zeffix may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have, especially:
- Kidney problems
- Problems with your pancreas
The information provided is not a substitute for any medical advice. Therefore, you should always consult with your doctor or pharmacist before using this medication.
What is the dose for an adult?
For HIV co-infection
Take 150 mg twice a day, in combination with other antiretroviral therapy drugs.
For chronic hepatitis B infection
Take 100 mg once a day. Your doctor may prescribe a higher or lower dose.
What is the dose for a child?
The safety and efficacy of Zeffix has not been established in children below 18 years old. Consult with your child’s pediatrician regarding the proper dose of this medication.
How is Zeffix available?
Zeffix is available in the following dosage forms and strengths:
- Film-coated tablet 100 mg
What should I do in case of an emergency or overdose?
In case of an emergency or an overdose, call your local emergency services or go to the nearest emergency room.
What should I do if I miss a dose?
If you miss a dose, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.