Mydocalm vs Myonal: Which Brand Is Best?

Which Muscle Relaxant Brand is Best? Quick Answer by Symptom

Thailand has several widely-used muscle relaxant brands — Mydocalm vs Myonal, Biocalm, and Norgesic — each with distinct strengths. The answer to "which brand is best" depends on your symptoms and your lifestyle. Here is a quick summary:

• General back pain, neck strain → Mydocalm or Biocalm (Tolperisone) — safe, moderate sedation, suitable for most people
• Need to work in office or drive → Myonal (Eperisone) — least sedating, does not impact focus
• Severe pain needing fast relief → Norgesic (Orphenadrine + Paracetamol) — combined formula acts fast, but causes drowsiness
• Tight budget, multi-day treatment → Biocalm — same active ingredient as Mydocalm
• Elderly → Myonal safest, reduces fall risk

In this article we deep-dive into the 4 popular brands — Mydocalm, Biocalm, Myonal, Norgesic — so you can compare and choose what matches your symptoms.

📖 Read more: Complete muscle relaxant overview — mechanism, side effects, precautions — Muscle Relaxants — Complete Guide

Popular Muscle Relaxant Brands in Thailand

In Thai pharmacies and clinics, the main 4 popular muscle relaxant brands cover 3 generic classes:

• Mydocalm — Tolperisone HCl (50/150 mg) from Sanofi/Gedeon Richter (Europe)
• Biocalm — Tolperisone HCl 50 mg manufactured in Thailand
• Myonal — Eperisone HCl 50 mg from Eisai (Japan)
• Norgesic — Orphenadrine 35 mg + Paracetamol 450 mg combination formula

Other brands occasionally seen include Soneriper M (Tolperisone + Methylcobalamin), Sirdalud (Tizanidine — Antispastic), Lioresal (Baclofen — Antispastic) — but the latter two are Antispastics for specific neurological conditions, not general muscle aches.

💡 Read more: How Tolperisone, Eperisone, Orphenadrine differ pharmacologically — Types of Muscle Relaxants — Tolperisone, Eperisone, Orphenadrine

Mydocalm — The Original Tolperisone Brand

Mydocalm is the original branded Tolperisone HCl, manufactured by Sanofi/Gedeon Richter (Europe). It has been available in Thailand for over 20 years and is well-established in Thai medical practice.

Strengths

• Most commonly used by Thai doctors — first-choice when prescribing muscle relaxants
• Two dose options available — 50 mg starting dose, 150 mg for severe symptoms
• European manufacturing quality with substantial clinical research backing
• Moderate sedation, less than Norgesic

Best For

• Those who want a trusted, established brand standard
• Patients with severe symptoms who may need to escalate to 150 mg
• Those satisfied with previous use, prefer not to switch brands

Limitations

Priced notably higher than Biocalm as a European branded product — for tight budgets or extended treatment courses, Biocalm offers the same Tolperisone at lower cost.

Biocalm — Affordable Tolperisone Alternative

Biocalm is Tolperisone HCl 50 mg manufactured in Thailand. Same active ingredient as Mydocalm in every respect — same mechanism, same dose, equivalent therapeutic effect.

Strengths

• Affordable — a more accessible price point than the European branded version
• Same active ingredient as Mydocalm — Tolperisone HCl 50 mg
• Manufactured in Thailand to TFDA standards, packaged in blister strips for easy dosing
• Ideal for those needing extended treatment, or who want to try before committing to the premium brand

Best For

• Budget-conscious patients who do not want to pay premium for branded
• Those needing 5-7 days continuous treatment, or with recurrence risk
• Those who have used Mydocalm successfully and want to switch to an affordable alternative

Limitations

• Only 50 mg dose available — for severe symptoms requiring 150 mg, choose Mydocalm instead
• Thai-manufactured — some patients may have less confidence in production quality vs European (despite TFDA standards)

Myonal — Eperisone, Least Sedating

Myonal is Eperisone HCl 50 mg from Eisai (Japan) — with dual mechanism of action that differentiates it from Tolperisone:

1. Muscle relaxation by reducing nerve signals at the spinal cord
2. Local vasodilation in spasmed muscles — increases blood flow, helping clear inflammatory waste

Strengths

• Least sedating among popular muscle relaxants — because it primarily acts on the spinal cord without significantly affecting consciousness centers
• Works through two simultaneous mechanisms — relaxation + vasodilation
• Suitable for medium-term use (1-2 weeks) under physician supervision

Best For

• Office workers needing concentration throughout the day
• Drivers and motorcycle taxi operators needing alertness
• Elderly patients wary of drowsiness and falls
• Those who tried Tolperisone or Norgesic but still felt drowsy

Limitations

Priced higher than other brands due to its Japanese branded status and dual mechanism — but worthwhile for those needing alertness.

Norgesic — Combined Muscle Relaxant + Paracetamol

Norgesic is a combination formula of Orphenadrine Citrate 35 mg + Paracetamol 450 mg in a single tablet — providing simultaneous dual action conveniently in one pill.

Strengths

• Relaxant + pain relief in one tablet — Orphenadrine relieves spasm + Paracetamol relieves pain, no need for two separate pills
• Fast acting — Paracetamol provides pain relief within 30 minutes
• Suitable for severe acute pain such as heavy back pain or improper exercise injury

Best For

• Those with acute pain needing fast relief
• Those who can tolerate drowsiness — taking before bed or on rest days
• Those with pain accompanied by mild inflammation

Limitations — Special Cautions

• Most sedating in the class — avoid driving and operating machinery
• Do NOT take additional Paracetamol as it is already included — risk of overdose and liver damage
• Has anticholinergic effects — dry mouth, constipation, risky in elderly
• Contraindicated in glaucoma or enlarged prostate patients
• Maximum 8 tablets/day — Paracetamol exceeds maximum daily dose

Comparison Table — Mydocalm vs Biocalm vs Myonal vs Norgesic

Which Brand Suits Whom?

Office workers and drivers — Myonal

Least sedating, does not impact focus or reaction time — work as normal.

General pain on a budget — Biocalm

Same Tolperisone as Mydocalm at a more accessible price — ideal for multi-day treatment.

Want established brand standard — Mydocalm

Well-known to doctors, available in 2 doses, suitable when escalation may be needed.

Acute pain, need fast relief — Norgesic

Combined formula with Paracetamol acts fast — but causes drowsiness, take before bed or on days off.

Elderly patients — Myonal (top choice)

Reduces fall risk from drowsiness — avoid Norgesic due to anticholinergic effects.

Pregnant or breastfeeding women — always consult a doctor

All brands are Pregnancy Category C — never self-medicate. Consult a physician to evaluate risk-benefit.

Voices from Real Users and Pharmacists — Brief Summary

From compiled opinions from real users and pharmacists in Thailand, sentiment toward each brand follows these patterns:

Mydocalm

Most users say "doctor prescribed", "actually works", "mild drowsiness" — a trusted brand, but complaints about "expensive" for multi-day treatment.

Biocalm

Frequently compared to Mydocalm — most say "same effect", "much cheaper" — many pharmacists recommend it as the affordable alternative.

Myonal

Office workers and drivers "love it" because "no drowsiness", "can keep working" — but complain "expensive" as a limitation.

Norgesic

Users say "pain relief is fast", "pain gone in a few hours" — but everyone warns "very drowsy", "do not take before driving", and pharmacists warn "do not take additional Paracetamol".

Note: real experiences vary individually — consult a pharmacist or doctor before deciding.