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Spafast 4mg Injection

Written By Dr. Lipika Khurana, PGDHHM, BDS
Reviewed By Dr. Rajeev Sharma, MBA, MBBS
Last updated on 25 Nov 2025 | 03:05 PM (IST)
Spafast 4mg Injection is a muscle relaxer. It provides relief from the discomfort associated with acute, painful musculoskeletal conditions such as rigidity, tension, stiffness, and muscle spasms.
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General Information

The content is shown in English
Spafast 4mg Injection image
Spafast 4mg Injection image

Product introduction

Spafast 4mg Injection is generally administered by a healthcare professional. You should not self-administer this medicine at home. The dose and duration will depend on what you are taking it for and how well it helps your symptoms. You should continue using the medicine until the doctor tells you it is alright to stop.

The most common side effects of this medicine include injection site reactions (such as pain, redness, and swelling), sleepiness, diarrhea, and abdominal pain. If any of these side effects persist or get worse, you should let your doctor know. Your doctor may be able to suggest ways of preventing or reducing the symptoms.

Before using it, you should let your doctor know if you have problems with your heart, liver, or kidneys. Let your doctor also know about all the other medicines you are taking because they may affect, or be affected by, this medicine. If you are pregnant or breastfeeding, it is important to ask the advice of your doctor before taking this medicine.

Uses of Spafast Injection

  • Muscle relaxation

Benefits of Spafast Injection

Muscle relaxation
Spafast 4mg Injection is a muscle relaxant that is used to relieve rigidity, inflammation, and swelling in conditions that affect skeletal muscles. It works by blocking chemical messengers in the brain that are responsible for such symptoms. It effectively relieves muscle stiffness or spasm, thereby improving muscle movement.
It is given as an injection by a doctor or nurse and should not be self-administered. The dose and duration will be decided by the doctor depending on the condition you are being treated for. This will help you to go about your daily activities more easily and have a better, more active, quality of life.

Side effects of Spafast Injection

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Spafast
  • Injection site reactions (pain, swelling, redness)
  • Sleepiness
  • Diarrhea
  • Abdominal pain

How to use Spafast Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How Spafast Injection works

Spafast 4mg Injection is a muscle relaxant. It works on the centres in the brain and spinal cord to relieve muscle stiffness or spasm without reduction in strength. This improves pain and movement of muscles.

All substitutes for Spafast 4mg Injection

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

  • Spafast 4mg Injection provides relief from rigidity, tension and stiffness in muscles (spasticity) that may occur due to various conditions affecting the nervous system.
  • Spafast 4mg Injection may cause dizziness or sleepiness. Do not drive or do anything requiring concentration until you know how it affects you.
  • Avoid consuming alcohol when taking Spafast 4mg Injection as it may cause excessive drowsiness.
  • Inform your doctor if you are pregnant, planning to conceive or breastfeeding.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Spafast 4mg Injection. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Spafast 4mg Injection during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Spafast 4mg Injection during breastfeeding is not available. Please consult your doctor.
Driving

Driving

UNSAFE
Spafast 4mg Injection may cause side effects that could affect your ability to drive.
Kidney

Kidney

CONSULT YOUR DOCTOR
There is limited data available on the use of Spafast 4mg Injection in patients with kidney disease. Please consult your doctor.
Liver

Liver

CONSULT YOUR DOCTOR
There is limited data available on the use of Spafast 4mg Injection in patients with liver disease.

Frequently asked questions

Spafast 4mg Injection is a muscle relaxant which is used in adults and adolescents from 16 years onwards as an add-on treatment for painful muscular contractions. It is to be used for acute conditions related to the spinal column.
No, Spafast 4mg Injection is not a steroid. It is a naturally occurring glucoside from a plant source.
Spafast 4mg Injection is a semi-synthetic derivative of naturally occurring compound colchicoside from the plant Gloriosa superb.
Spafast 4mg Injection is a safe medicine if used at prescribed doses for the prescribed duration as advised by your doctor. Recently, there have been reports that one of the products formed in the body when taking Spafast 4mg Injection at high doses may cause damage to the some cells which could be a risk factor for cancer, harm to unborn child and impairment of male fertility. Please consult your doctor before taking this medicine.
Thiocochicoside works by acting on the centres in the brain and spinal cord to relieve the muscle stiffness or spasm.
No, Spafast 4mg Injection is not known to have any addiction potential.

Fact Box

Chemical Class

Phenolic glycosides

Habit Forming

No

Therapeutic Class

PAIN ANALGESICS

Action Class

Centrally Acting Skeletal Muscle Relaxants
100% genuine products
100% genuine products
Safe & secure payments
Safe & secure payments
No contact delivery
No contact delivery
Fully sanitized facilities
Fully sanitized facilities

User feedback

Once A Week
80%
Twice A Day
20%
Muscle relaxation
100%
Average
100%
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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Delcure Life Sciences
Address: Kerom 3rd Floor Plot No A112, Near State Bank of India Road No 22, Wagle Industrial Estate Thane (W) Pin: 400604

Vendor Details

Country of origin: India
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