Description:
Panalex 500 mg is a pain reliever and antipyretic (fever reducer) tablet. It is used for relief of mild to moderate pain (e.g. headache, toothache, muscle aches) and for reducing fever. 

Prescription:
Over-the-counter (OTC), not requiring a prescription. 

Therapeutic Category:
Analgesic / Antipyretic (pain reliever and fever reducer) 

Active Ingredients / Composition:
Each tablet contains paracetamol (acetaminophen) 500 mg as the active ingredient. 

Other inactive (excipients) ingredients are not detailed in the sources I found.

Variant:
Standard tablet, 500 mg strength. The “500 mg” denotes its paracetamol content. 

Consume Type:
Oral — the tablet is swallowed with water.

Directions / Usage:

• Adults (and children 16 years and older) may take 1 to 2 tablets at a time, up to 4 times per day (i.e. maximum of 8 tablets in 24 hours), as required. 
• At least 4 hours between doses should be maintained. 
• Do not exceed the recommended dose.
• For children or teenagers, dosing should be based on weight/age or as advised by a healthcare provider.

Common Side Effects:
Paracetamol is generally well tolerated when used at recommended doses. Some possible side effects include:

• Allergic reactions (rash, itching)
  Rarely, liver toxicity in overdose or chronic overuse
  
• In very rare cases, low-grade facial swelling or hypersensitivity reactions
  

Package Type:
Usually provided in blister packs of 30 tablets (i.e. 30’s) as Panalex 500 mg Tab 30’s. 

Storage Advice:

• Store below 25 °C (room temperature) in a dry place.
• Protect from moisture or direct sunlight.
• Keep out of reach of children and pets.
• Do not use past the expiry date.
  

Safety Advice:

• Do not take with other paracetamol-containing products (to avoid overdose).
• Use caution (or avoid) in patients with liver disease, chronic alcohol use, or other conditions affecting liver function.
• Avoid or adjust use in severe kidney impairment.
• If pain or fever persists beyond a few days, or symptoms worsen, seek medical advice.
• Stop use and consult a doctor if signs of allergic reaction (swelling, hives), dark urine, jaundice, or unusual bleeding occur.
• Use caution if used concomitantly with other drugs that stress the liver (e.g., some anticonvulsants, isoniazid, etc.).
  

Product Substitutes:
Other brands of paracetamol 500 mg tablets can act as equivalents. Some possibilities:

• Panadol 500 mg
• Tylenol 500 mg (in markets where available)
• Generic paracetamol 500 mg tablets
  

Manufacturer / Marketer:
Luex Healthcare. 

Country of Origin:
United Kingdom