Fortwin 30 Mg Injection 1 Ml

Ranbaxy Laboratories Ltd

Pack of 1 ML

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Old MRP ₹5.58

MRP ~~₹5.23~~

₹4.18

₹5.23/ML

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Composition

Pentazocine (30 Mg)

Fortwin 30 mg Injection is used to relieve moderate to severe pain. It is a single-ingredient opioid analgesic containing pentazocine.

It is used before or after surgery to relieve pain and as an adjunct to surgical anaesthesia. This injection is administered by a doctor or nurse, who will determine the appropriate dose and frequency according to your condition and response to treatment.

Before receiving this medicine, inform your doctor about any existing medical conditions, particularly breathing problems, head injuries, seizures, or liver disease. Tell your doctor about all other medicines, supplements and herbal products you take. Inform your doctor if you are pregnant, breastfeeding, or have a history of medicine dependence. Report any persistent or serious side effects to your doctor. Do not stop or change your treatment unless advised by your doctor.

Fortwin 30 mg Injection is used to relieve moderate to severe pain and support pain management during surgical care.

Uses of Fortwin 30 mg Injection are:

Moderate to severe pain: Used to relieve pain that requires treatment with an opioid analgesic.
Pre-operative and post-operative pain: Used before or after surgery to help manage pain.
Supplement to surgical anaesthesia: Used alongside other medicines during surgery to support pain relief and anaesthesia.

This medicine must be administered by a doctor or nurse who is trained to give injections.
Follow the instructions provided by the doctor administering the injection.
Inform the doctor or nurse immediately if you feel unwell during or after administration.

Fortwin 30 mg Injection is administered intramuscularly (IM), intravenously (IV) or subcutaneously (SC), as prescribed by the doctor.

Fortwin 30 mg Injection may cause side effects. Their occurrence and severity can vary depending on the dose and individual response.

A few common side effects of Fortwin 30 mg Injection:

Nervous system: Drowsiness, dizziness and light-headedness
Other effects: Sweating

If any side effect persists or becomes serious, speak to your doctor. Seek immediate medical attention if you experience slow or difficult breathing, fainting, seizures or a severe allergic reaction. Do not stop or change your treatment without your doctor's advice.

Management Of Side Effects:

Fortwin 30 mg Injection is administered under medical supervision. If you experience a side effect during or after administration, inform your doctor or nurse so that it can be assessed.
Seek immediate medical attention if you experience slow or difficult breathing, extreme drowsiness or difficulty waking up. Do not attempt to manage these symptoms yourself.

Fortwin 30 mg Injection contains the following active ingredient:

Pentazocine (30 mg/mL): Pentazocine acts on specific receptors in the brain and spinal cord that help control pain. It changes how pain signals are transmitted and processed by the nervous system, reducing the intensity of pain felt by the body. It works by activating certain opioid receptors and partly blocking the action of others, helping relieve pain through more than one receptor pathway.

Pregnancy

Fortwin 30 mg Injection should be used during pregnancy only when considered necessary by the doctor. Prolonged use during pregnancy may cause withdrawal symptoms in the newborn. Inform your doctor if you are pregnant or planning to become pregnant before receiving this medicine.

Breastfeeding

Pentazocine may pass into breast milk and could cause excessive sleepiness or breathing difficulties in a breastfed baby. Inform your doctor if you are breastfeeding before receiving this medicine. Your doctor will assess the potential risks and benefits and advise you accordingly.

Alcohol

Avoid alcohol while receiving Fortwin 30 mg Injection, as it may increase drowsiness and the risk of serious breathing difficulties. Inform your doctor if you consume alcohol regularly.

Liver

If you have liver disease, inform your doctor before receiving Fortwin 30 mg Injection. Severe liver impairment may reduce the breakdown of pentazocine in the body and increase the risk of side effects. Your doctor will determine whether this medicine is suitable for you.

Kidney

If you have kidney disease, inform your doctor before receiving Fortwin 30 mg Injection. Your doctor will assess your condition and determine whether additional monitoring or precautions are needed during treatment.

Use In Driving And Operating Machinery

Fortwin 30 mg Injection may cause dizziness or light-headedness. Avoid driving or operating machinery while experiencing these effects. Follow your doctor's advice before resuming these activities.

Allergy

Do not receive Fortwin 30 mg Injection if you are allergic to pentazocine or any of the ingredients in the formulation. Inform your doctor about any known medicine allergies or previous allergic reactions before treatment.

Children

Fortwin 30 mg Injection should be given to children only when prescribed by a doctor. The appropriate dose and suitability depend on the child's age and clinical condition. Consult the child's doctor before administration.

Older Patients

Older patients may be more sensitive to the effects of pentazocine and may have a higher risk of drowsiness and breathing difficulties. The doctor may need to use a cautious dose and monitor the patient closely, particularly if they have liver or kidney problems or take other medicines that cause sedation.

Drug-Drug Interactions

Fortwin 30 mg Injection may interact with the following medicines:

Monoamine oxidase inhibitors (MAOIs): Concurrent use may cause central nervous system excitation and increased blood pressure. Inform your doctor if you are taking an MAOI or have taken one within the previous 14 days.
Sedatives and other central nervous system depressants: Medicines such as benzodiazepines, sedating antihistamines, certain antidepressants and other sedatives may increase drowsiness and the risk of breathing difficulties.
Other opioid medicines: Pentazocine may reduce or oppose the effects of stronger opioid agonists, such as morphine. It may also precipitate withdrawal symptoms in people who are physically dependent on opioids.

Drug-Disease Interactions

Fortwin 30 mg Injection requires particular caution in the following conditions:

Breathing problems: Pentazocine can slow breathing. Inform your doctor if you have asthma, chronic lung disease or any other breathing problem. The doctor will assess whether this medicine is suitable for you.
Head injury and increased pressure in the brain: Inform your doctor if you have had a head injury or have increased pressure inside the skull. Pentazocine may require particular caution in these circumstances.
Seizures: Inform your doctor if you have a history of seizures or conditions that increase your risk of them. Pentazocine should be used cautiously in susceptible patients.

Daily Dose

The dose and frequency of Fortwin 30 mg Injection are determined by the doctor based on the severity of pain, the patient's clinical condition and response to treatment. The injection must be administered by a qualified healthcare professional. Do not change the prescribed dose without consulting your doctor.

Over Dose

An overdose is unlikely as Fortwin 30 mg Injection is administered under medical supervision. However, if an overdose is suspected, the doctor will provide appropriate emergency treatment and monitor breathing and other vital functions.

Missed Dose

If you miss a scheduled dose of Fortwin 30 mg Injection, contact your doctor or healthcare provider for advice on when to receive the next dose. Do not receive an additional dose to make up for the missed injection.

Store Fortwin 30 mg Injection in a cool and dry place away from direct sunlight.
Keep the injection in its original packaging until required for use.
Keep it out of the sight and reach of children.
Do not use the injection if the packaging is damaged or the solution appears abnormal.
Unused medicine and injection materials should be disposed of according to local medical-waste requirements.

Maintain a balanced diet with adequate nutrition to support your overall health during treatment.
Follow your doctor's advice regarding physical activity and rest, particularly if you experience pain, dizziness or drowsiness.

Fact Box

Dosage Forms Available	Injection
Habit Forming	Yes, may cause dependence
Ailment	Moderate to severe pain; peri-operative pain management
Drug Category	Mixed opioid agonist-antagonist
Therapeutic Category	Opioid analgesic

Is Fortwin 30 mg Injection an opioid medicine?

Yes. Fortwin 30 mg Injection contains pentazocine, an opioid analgesic that acts on opioid receptors in the central nervous system to relieve pain.

What is Fortwin 30 mg Injection used for?

It is used to relieve moderate to severe pain. It may also be used before or after surgery and as an adjunct to surgical anaesthesia, depending on the clinical situation.

Can Fortwin 30 mg Injection cause drowsiness?

Yes. Pentazocine can cause drowsiness, dizziness and light-headedness. Avoid driving or operating machinery while affected by the medicine.

Can Fortwin 30 mg Injection be administered at home?

This injection should be administered by a trained healthcare professional. Do not attempt to inject it yourself unless a doctor has specifically authorised and trained you to do so.

Is Fortwin 30 mg Injection habit-forming?

Pentazocine can cause physical dependence and may be habit-forming. It should be used only as prescribed, with appropriate medical supervision.

Can alcohol be consumed after receiving Fortwin 30 mg Injection?

Alcohol should be avoided while receiving this medicine because it can increase sedation and the risk of serious breathing difficulties.

Last Updated On 27 Oct. 2026 | 12:25PM (IST)

Certified Content

Written by

Dr. Parul Soni

Medical Content Reviewer | 13 years

BPTh. & MPTh.

Reviewed by

Dr. Anindya Debnath

Medical Content Reviewer | 14 years

MBBS , MD

Check out Editorial Policy

Manufacturer details

A-41 Industrial Area Phase VIII-A SAS Nagar PB 160071 IN ,

Country of origin: INDIA

Expiry on or after: March 2027

In case of any issues, contact us:

support@truemeds.in|09240250346

Address: 6th floor, Urmi Corporate Park Solaris, Saki Vihar Road, Andheri East, Mumbai 400071

References

National Agency for Food and Drug Administration and Control. (2022). Pentazocine injection BP 30 mg/mL: Summary of product characteristics. https://www.nafdac.gov.ng/wp-content/uploads/Files/SMPC/Feb2_2022/Pentazocine-Injection-BP-30-mgml.pdf
National Library of Medicine. (2025, September 15). Pentazocine. MedlinePlus. Retrieved October 16, 2026, from https://medlineplus.gov/druginfo/meds/a601092.html
National Center for Biotechnology Information (2026). PubChem Compound Summary for CID 441278, Pentazocine. Retrieved October 16, 2026 from https://pubchem.ncbi.nlm.nih.gov/compound/Pentazocine
DrugBank Online. (n.d.). Pentazocine (DB00652). Retrieved October 16, 2026, from https://go.drugbank.com/drugs/DB00652

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Disclaimer

We, at Truemeds make a diligent attempt to deliver accurate, expert- drafted and thoroughly reviewed medicine related information to our consumers. However, it should, by no means, be considered a substitute for prescription from a certified doctor or a trustworthy doctor-patient relationship. In fact we detest any form of self medication without expert advice. The sole purpose of the information on our portal is to educate our consumers, which helps improve the communication between a doctor and a patient. The information by no means is complete in its entirety and should not be used to diagnose or treat any medical condition. No amount of information can replace the experience and expertise of a doctor, therefore his/her advice always holds priority and should be followed appropriately.

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