Zyban-Bupron-Bupropion Hydrochloride

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Zyban-Bupron-Bupropion Hydrochloride

Generic: Bupropion Hydrochloride 300mg

Manufacturer: Sun Pharma

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Zyban 300 MG is a pharmaceutical anti-smoking drug used as an encouragement to the patients for smoking cessation. I is classified under the class of anti-depressant agents. This form of Zyban 300 MG helps to lessen the signs/indications/symptoms of nicotine withdrawal. This drug works on chemicals present in the brain that are associated to nicotine desire. 

Additional Information

Dosage No
Side Effects No
precaution No
Blog No

How does Drug Work?

Zyban 300 MG modify the level of few chemicals present in the brain (named as neurotransmitters) by restoring the balance of noradrenalin and dopamine in the brain as lack of these neurotransmitters may be involved in the addiction process and may contribute to withdrawal. This gives the impression to ease the withdrawal symptoms that individual get when he stops smoking(symptoms are: Anxiety, feeling of restlessness, severe headaches, feeling of irritability, hunger, difficulty in focusing, or just feeling horrific).

What is the Dosage of Zyban 300 MG?

These tablets of Zyban 300 MG should be swallowed as a whole. Crushing and chewing of tablets are not allowed.

Dose of tablets of Zyban 300 MG: primary dose with one 150 MG tablet per day for three days (either in morning or in evening).

This dose may gradually increase to 300 MG per day: as a 150 MG tablet 2 times a day (morning and evening).

Directions for Use: Patient’s instructions for proper use of Zyban 300 MG along with each of its package.

What are the indications of Zyban 300 MG?

It is indicated as assistance to smoking cessation treatment.

       What are the Contraindications of Zyban 300 MG?

Zyban 300 MG is contraindicated in patients who are having following medical conditions:

  • It is not hand out to patients who are suffering from eating disorders such as Bulimia and Anorexia. (Bulimia- it is a disorder associated with consumption of large amount of food in short time period. Anorexia- it is a disorder associated inappropriate eating habits.)
  • It is contraindicated to those who are sensitive to any one of its ingredients.
  • It is contraindicated in those patients having tremor problems.


What are the Side Effects of Zyban 300 MG?

Ask your doctor/pharmacist if you exhibit some of these major side effects:

  • Swollen facial parts such as Lips, Tongue or throat.
  •  Severe Pain in abdomen.
  • Having problem in passing stool.
  • Dryness of mouth.
  • Gradually gain in body weight.
  • State of confusion.
  • Anxiety.
  • Severe headaches.

Discontinue the medication if following conditions appear:

  • Severe fits.
  •  Skin reactions such as blistering.
  • Not breathing properly.
  • Vomiting.
  • Cirrhosis (it is diseased condition of liver which is characterized by following indications such as: jaundice, fatigue, loss of appetite.)

Listed side effects of Zyban 300 MG are not complete.

What are the Drug Interactions of Zyban 300 MG?

Medications are known to interact with Zyban 300 MG are:

(Below Mentioned list is not complete. Consult your doctor before taking Zyban 300 MG)

  • Carbamazepine.
  • Phenobarbital.
  • Phenytoin.
  • Ritonavir.
  • Lopinavir.
  • Efavirenz.
  • Levodopa.
  • Amantadine.

How should you store Zyban 300 MG?

Storage conditions of Zyban 300 MG are:

•         Stay children away from Zyban 300 MG.

•         Guard from light and moisture.

•         Storage temperature is not above 25°C (77°F)

•         Stop taking Zyban 300 MG after its expiry date shown as “EXP” on the label or box.

REMEMBER: This medicine has been prescribed for you by your doctor. DO NOT give this medicine to anyone without prescription.

What are points you should kept in mind before taking Zyban 300 MG?

If you are taking Zyban 300 MG, keep few points in mind:

  • If you are pregnant.
  • If you are breast feeding mother.
  • If you have any injury to head or spinal cord.
  • If you are having any medicine without prescription for weight reduction.
  • If you are having any drug that contains methylene blue.


In some Cases, this medicament possibly will not be appropriate and your doctor/pharmacist may wish to give you a Different medicine. Make clear by all means that your doctor knows about your medical history.

What should be done in case of Missed Dose?

If it is closer the time of the next dose, don’t take the missed dose and resume the usual dosing schedule. Don’t double your dose.

What should be done in case of Over Dose?

Overdosed person with Zyban 300 MG, make a call to poison control center or crisis room quickly. 

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