pdspas 40mg injection - Drotaverine (40mg) medicine

Drotin Injection 2ml: Complete Medicine Guide

No reviews yet
🏭 Pharma Drugs & Chemicals 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for approved indications.
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or swelling of the face, lips, or throat
  • Severe chest pain or irregular heartbeat
  • Extreme dizziness or fainting
  • Persistent vomiting or severe abdominal pain
  • Signs of an allergic reaction such as rash, itching, or hives
  • Decreased urine output or blood in urine

If experiencing severe symptoms, call emergency services immediately.

What is pdspas 40mg injection used for?

Drotaverine injection is an antispasmodic medicine used to relieve smooth muscle spasms in conditions like gastrointestinal, biliary, and renal colic, as well as dysmenorrhea. It works by relaxing smooth muscles and is given by a healthcare professional.

  • Generic Name: Drotaverine (40mg)
  • Manufacturer: Pharma Drugs & Chemicals
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 pdspas 40mg injection के बारे में (Hindi Summary)

उपयोग: यह दवा ड्रोटावेरिन हाइड्रोक्लोराइड का इंजेक्शन है, जिसका उपयोग पेट, पित्त नली, गुर्दे और गर्भाशय की मांसपेशियों में होने वाले ऐंठन को दूर करने के लिए किया जाता है। यह दवा मांसपेशियों को आराम देकर दर्द को कम करती है। इसे डॉक्टर या नर्स द्वारा इंजेक्शन के रूप में दिया जाता है। यह दवा पेट दर्द, पित्त की पथरी, गुर्दे की पथरी और मासिक धर्म के दर्द में राहत देती है।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन लगाने की जगह पर दर्द, लालिमा या सूजन, चक्कर आना, सिरदर्द, जी मिचलाना और रक्तचाप कम होना शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन अगर सांस लेने में कठिनाई, चेहरे या गले में सूजन, या दिल की धड़कन अनियमित हो, तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: यह दवा केवल डॉक्टर या प्रशिक्षित स्वास्थ्यकर्मी द्वारा ही दी जानी चाहिए। इसे घर पर स्वयं न लगाएं। अपने डॉक्टर को अपनी सभी स्वास्थ्य समस्याओं और दवाओं के बारे में बताएं। इंजेक्शन लगने के बाद तब तक वाहन न चलाएं जब तक आपको पता न चल जाए कि यह दवा आप पर कैसा असर करती है। यदि आप गर्भवती हैं या स्तनपान करा रही हैं, तो डॉक्टर से सलाह लें।

💡 Did You Know? The first generic medicine was introduced in India in 1970 after the Patents Act was amended.

💊 pdspas 40mg injection Uses & Benefits

[{"condition":"Gastrointestinal spasms","description":"Relieves painful spasms of the stomach and intestines, often associated with irritable bowel syndrome or gastroenteritis.","evidence":"Well-established"},{"condition":"Biliary colic","description":"Relaxes the smooth muscle of the biliary tract to relieve pain from gallstones or biliary dyskinesia.","evidence":"Well-established"},{"condition":"Renal colic","description":"Reduces spasms in the urinary tract, helping to relieve pain from kidney stones.","evidence":"Well-established"},{"condition":"Dysmenorrhea","description":"Relieves menstrual cramps by relaxing uterine smooth muscle.","evidence":"Well-established"},{"condition":"Labor pain management","description":"Sometimes used to reduce cervical spasms during labor, but only under strict medical supervision.","evidence":"Limited"}]

Off-label uses: [{"condition":"Esophageal spasm","description":"May be used off-label to relieve spasm of the esophagus, but evidence is limited.","evidence":"Limited"},{"condition":"Tension headache","description":"Occasionally used off-label for tension-type headaches, though not a first-line treatment.","evidence":"Limited"}]

Primary treatment for: Smooth muscle spasms

Also treats: Gastrointestinal spasms, Biliary colic, Renal colic, Dysmenorrhea

📋 Drug Information

Generic Name(s)Drotaverine (40mg)
Brand Namepdspas 40mg injection
ManufacturerPharma Drugs & Chemicals
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassGASTRO INTESTINAL
Action ClassPhosphodiesterase-IV inhibitors (Smooth Muscle Relaxant)
Route of AdministrationParenteral (intramuscular or intravenous injection)
StorageStore below 30°C in a dry place, protected from light. Do not freeze. Keep out of reach of children.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Administer this injection only in a clinical setting with resuscitation equipment available.
2
Monitor blood pressure before and after administration, especially in patients with cardiovascular disease.
3
Use the lowest effective dose for the shortest duration to minimize side effects.
4
Avoid concurrent use with levodopa as it may reduce its effectiveness.
5
Instruct patients to remain seated or lying down for 10-15 minutes after injection to prevent dizziness.
6
Consider alternative antispasmodics in patients with severe hepatic or renal impairment.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

Abdominal cramps
This medicine is commonly prescribed for this.
Likely Use
Biliary colic
This medicine is used to relieve biliary spasms.
Likely Use
Renal colic
This medicine helps relax urinary tract spasms.
Likely Use
Menstrual cramps
This medicine is effective for dysmenorrhea.
Likely Use
Fever
This medicine is not a fever reducer.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionNot established from the available information for the injection route, as it is directly administered into the bloodstream or muscle.
DistributionNot established from the available information.
Protein BindingNot established from the available information.
MetabolismDrotaverine is extensively metabolized in the liver, primarily by O-demethylation and glucuronidation. One of its metabolites, monodemethyl drotaverine, has some pharmacological activity.
Half-LifeThe elimination half-life of drotaverine is approximately 8 to 10 hours in healthy adults.
ExcretionDrotaverine and its metabolites are mainly excreted in the urine, with a smaller fraction eliminated in the feces.
BioavailabilityNot established from the available information for the injection route, as it bypasses the gastrointestinal absorption process.
Onset of ActionOnset of action is rapid, typically within 5 to 15 minutes after intramuscular or intravenous injection.
Peak Plasma TimePeak plasma concentration is reached within 10 to 20 minutes after intramuscular injection and almost immediately after intravenous injection.
Duration of ActionThe antispasmodic effect lasts for approximately 4 to 6 hours after a single injection.

How It Works

Drotaverine inhibits phosphodiesterase type 4 (PDE4), leading to increased intracellular cyclic adenosine monophosphate (cAMP) in smooth muscle cells. Elevated cAMP reduces calcium availability and inhibits myosin light-chain kinase, resulting in smooth muscle relaxation. This action is selective for smooth muscle and does not significantly affect cardiac muscle or skeletal muscle.

Mechanism Steps

1
Inhibition of PDE4: Drotaverine binds to and inhibits the phosphodiesterase type 4 enzyme in smooth muscle cells.
2
Increased cAMP: Inhibition of PDE4 prevents the breakdown of cyclic adenosine monophosphate (cAMP), leading to its accumulation.
3
Reduced calcium influx: Elevated cAMP reduces the influx of calcium ions into the smooth muscle cell.
4
Inhibition of myosin light-chain kinase: Lower calcium levels reduce the activity of myosin light-chain kinase, which is required for muscle contraction.
5
Smooth muscle relaxation: The overall effect is relaxation of smooth muscle, relieving spasms and associated pain.

💡 How to Take pdspas 40mg injection

Strength: Injection: 40 mg in 2 ml ampoule

1This medicine is given by a healthcare professional as an intramuscular or intravenous injection.
2Do not attempt to self-administer.
3The injection site will be cleaned before administration.
4Inform your doctor if you feel any pain or discomfort during injection.
5After injection, remain seated or lying down for a few minutes to avoid dizziness.

Dosage Information

Adult DosageThe usual adult dose is 40 mg to 80 mg given by intramuscular or intravenous injection, up to three times daily. The maximum daily dose is 240 mg. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician.
Elderly DosageElderly patients may be more sensitive to the effects of drotaverine, especially hypotension and dizziness. Use with caution and consider lower doses. Dose must be individualized by a qualified clinician.
Renal ImpairmentUse with caution in patients with severe renal impairment. Dose adjustment may be necessary. Consult a doctor.
Hepatic ImpairmentUse with caution in patients with severe hepatic impairment. Dose adjustment may be necessary. Consult a doctor.
Maximum Daily Dose240 mg per day

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

No specific food interactions
No restrictions
This medicine is given by injection, so food does not affect its absorption.

⏰ What to Do If You Miss a Dose

📌 This medicine is given by a healthcare professional, so missed doses are unlikely.
→ If you miss a scheduled dose, contact your doctor or nurse for guidance.
💡 Do not attempt to self-administer.

⚠️ Side Effects of pdspas 40mg injection

✅ Common Side Effects

Injection site pain (Common (5-10%))
Apply a cold compress to the site. It usually resolves within a few hours.
Dizziness (Common (5-10%))
Lie down and rest. Avoid driving or operating machinery until it passes.
Headache (Common (5-10%))
Rest in a quiet, dark room. Consult your doctor if it persists.
Nausea (Common (5-10%))
Eat small, bland meals. Avoid fatty or spicy foods.
Low blood pressure (Uncommon (1-5%))
Lie down with legs elevated. Inform your doctor immediately if you feel faint.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek emergency medical help immediately if you experience swelling of the face, lips, throat, or difficulty breathing.
Irregular heartbeat (arrhythmia) (Rare (<0.1%))
Seek immediate medical attention if you feel palpitations, chest pain, or shortness of breath.
Severe hypotension (Rare (<0.1%))
Lie down and call for emergency help if you feel extremely dizzy or faint.

⚠️ Rare Side Effects

Bronchospasm
Seek immediate medical attention if you develop wheezing or difficulty breathing.
Thrombocytopenia
Report any unusual bruising or bleeding to your doctor immediately.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Levodopa Major
Anticholinergics Moderate
Beta-blockers Moderate
Calcium channel blockers Moderate
Alcohol Moderate

🚨 Major Interactions

  • Levodopa
  • Anticholinergic drugs (e.g., atropine, hyoscine)

⚡ Moderate Interactions

  • Beta-blockers
  • Calcium channel blockers

🍷 Alcohol Interaction

Alcohol may enhance the central nervous system depressant effects of drotaverine, such as dizziness and drowsiness. It is advisable to avoid alcohol while receiving this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Hypersensitivity to drotaverine or any component of the formulation","Severe heart failure","Severe liver disease","Severe kidney disease","Children under 12 years of age (safety and efficacy not established)"]

⚠️ Warnings & Precautions

["This medicine should be administered only by a healthcare professional.","Use with caution in patients with low blood pressure or heart disease.","Avoid driving or operating machinery after receiving this injection until you know how it affects you.","Do not use if the solution is discolored or contains particles.","Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding.","Keep out of reach of children."]

🤱 Lactation Safety

It is not known whether drotaverine is excreted in human breast milk. Caution is advised when used in breastfeeding women. Consult a doctor before use.

💊 Overdose Management

Overdose may cause severe hypotension, tachycardia, and central nervous system depression. There is no specific antidote. Treatment is supportive and symptomatic, including monitoring of vital signs and administration of intravenous fluids if needed. In case of overdose, seek immediate medical attention.

⏰ Missed Dose

This medicine is given by a healthcare professional, so missed doses are unlikely. If you miss a scheduled dose, contact your doctor or nurse for guidance. Do not attempt to self-administer.

Additional Safety Advice

General Safety

This medicine must be given only by a qualified healthcare professional in a clinical setting. Do not attempt to self-administer. Inform your doctor about all your medical conditions, especially heart, liver, or kidney problems, and all medicines you are taking. Avoid driving or operating machinery immediately after receiving this injection until you know how it affects you. Do not use this medicine if you are allergic to drotaverine or any of its ingredients. Use with caution in elderly patients and those with low blood pressure.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may be more sensitive to the hypotensive and dizzy effects of this medicine. Use with caution and monitor blood pressure closely. Lower doses may be appropriate.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before using this medicine. It should be used during pregnancy only if clearly needed.

🏥 Post-Surgery Considerations

This medicine may be used after surgery to relieve smooth muscle spasms. However, it should be administered only under medical supervision. Inform your surgeon if you are taking this medicine.

🦷 Dental Procedures

No specific considerations for dental procedures. However, inform your dentist if you are receiving this medicine, as it may interact with other medications used during dental work.

💚 Lifestyle Tips for Better Results

🏃
Stay well hydrated to help prevent kidney stones.
🥗
Eat a balanced diet rich in fiber to prevent constipation.
😴
Avoid heavy meals that can trigger biliary colic.
💧
Practice relaxation techniques to reduce stress-induced spasms.
🧘
Get regular exercise to maintain overall health.

🏋️ Exercise Considerations

Avoid strenuous exercise immediately after receiving this injection, as it may cause dizziness or low blood pressure. Rest for at least 30 minutes before resuming normal activities.

🥗 Diet Recommendations

Eat small, frequent meals to reduce gastrointestinal spasms.
Avoid fatty and spicy foods that can trigger biliary colic.
Increase fluid intake to prevent kidney stones.
Include plenty of fruits and vegetables in your diet.

💼 Impact on Daily Work & Life

This medicine may cause dizziness and low blood pressure, which can affect your ability to drive or operate machinery. Avoid these activities until you know how the medicine affects you. It is usually given in a clinical setting, so work impact is minimal after the effect wears off.

🛑 When to Stop This Medicine

This medicine is given as a single dose or a short course. Do not stop or change the dose without consulting your doctor. If you experience severe side effects, seek immediate medical attention.

📅 Long-Term Use Effects

Long-term use of this medicine is not recommended without medical supervision. Prolonged use may lead to tolerance and increased risk of side effects. Regular monitoring of liver and kidney function may be advised. Consult your doctor for periodic evaluation.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Oral antispasmodics

Oral drotaverine or other antispasmodics can be used for milder spasms.

Evidence: Well-established
Heat therapy

Applying a heating pad to the abdomen can help relax muscles.

Evidence: Limited
Relaxation techniques

Deep breathing and meditation can reduce stress-related spasms.

Evidence: Limited

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No specific interactions with vaccines are known. However, consult your doctor before receiving any vaccine if you are currently receiving this medicine.

📦 Storage Guide

✅ DO

Store below 30°C in a dry place

❌ DON'T

Do not freeze

✅ DO

Protect from light

❌ DON'T

Do not use if the solution is discolored or contains particles

✅ DO

Keep out of reach of children

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

This medicine is given by a healthcare professional, so it is not typically carried by patients during travel. If you are prescribed this medicine for use during travel, carry it in its original packaging with a copy of your prescription. Store it below 30°C and protect it from light. Check customs regulations for injectable medicines before traveling internationally. It is advisable to have a doctor&#039;s letter explaining the medical need.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with severe menstrual cramps
She received this medicine as an intramuscular injection for dysmenorrhea. Within 10 minutes, her pain significantly decreased. She was advised to rest for 15 minutes and avoid driving. She experienced mild dizziness that resolved within an hour.
💡 Lesson: This medicine provides rapid relief from menstrual cramps but may cause transient dizziness, so patients should rest after administration.
👤 A 50-year-old man with renal colic due to a kidney stone
He was given this medicine intravenously in the emergency department. His pain relief was rapid, but his blood pressure dropped slightly. He was monitored for 30 minutes and then discharged with oral painkillers.
💡 Lesson: Blood pressure should be monitored after administration, especially in patients with hypertension or those on antihypertensive drugs.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: This medicine starts working within 5 to 15 minutes after injection.

Q: Can I take this medicine at home?

A: No, this medicine must be given by a healthcare professional in a clinical setting.

Q: Is it safe during pregnancy?

A: Use during pregnancy only if clearly needed and after consulting your doctor.

Q: What are the common side effects?

A: Common side effects include injection site pain, dizziness, headache, and nausea.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?

🔄 Substitutes for pdspas 40mg injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Drotaverine injection is a painkiller for any type of pain.
    Fact: It is specifically for smooth muscle spasms and is not effective for other types of pain.
  • Myth: You can self-administer drotaverine injection at home.
    Fact: It must be given by a healthcare professional in a clinical setting.
  • Myth: Drotaverine injection is safe during pregnancy without any risk.
    Fact: It should be used during pregnancy only if clearly needed and after consulting a doctor.

🔄 Alternative Options

Generic Alternatives

  • Drotaverine 40 mg/2 ml injection

Brand Alternatives

  • Drotin Injection 2ml

📊 Comparison with Similar Medicines

[{"medicine":"Drotaverine","class":"PDE4 inhibitor","route":"Parenteral","common_uses":"GI, biliary, renal colic, dysmenorrhea","onset":"5-15 minutes"},{"medicine":"Hyoscine butylbromide","class":"Antimuscarinic","route":"Parenteral","common_uses":"GI, biliary, renal colic","onset":"2-5 minutes"},{"medicine":"Dicyclomine","class":"Antimuscarinic","route":"Parenteral","common_uses":"GI spasms","onset":"5-10 minutes"}]

😊 Was this information helpful?

Browse Medicines A-Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory