Product Information

Registration Status: Active

MEPHAQUIN LACTAB 250mg is approved to be sold in Singapore with effective from 1988-04-26. It is marketed by APEX PHARMA MARKETING PTE LTD, with the registration number of SIN00398P.

This product contains Mefloquine 250mg in the form of TABLET, FILM-COATED. It is approved for ORAL use.

This product is manufactured by Acino Pharma AG in SWITZERLAND.

It is a Pharmacy Only Medicine that can be obtained from a pharmacist at a retail pharmacy.



A phospholipid-interacting antimalarial drug (antimalarials). It is very effective against plasmodium falciparum with very few side effects. [PubChem]


For the treatment of mild to moderate acute malaria caused by Mefloquineuine-susceptible strains of Plasmodium falciparum (both chloroquine-susceptible and resistant strains) or by Plasmodium vivax. Also for the prophylaxis of Plasmodium falciparum and Plasmodium vivax malaria infections, including prophylaxis of chloroquine-resistant strains of Plasmodium falciparum.

Mechanism of Action

Mefloquine has been found to produce swelling of the Plasmodium falciparum food vacuoles. It may act by forming toxic complexes with free heme that damage membranes and interact with other plasmodial components.


Well absorbed from the gastrointestinal tract. The presence of food significantly enhances the rate and extent of absorption.
* 20 L/kg [healthy adults]
Hepatic. Two metabolites have been identified in humans. The main metabolite, 2,8-bis-trifluoromethyl-4-quinoline carboxylic acid, is inactive against Plasmodium falciparum. The second metabolite, an alcohol, is present in minute quantities.


* 30 mL/min


Oral, rat: LD50 = 880 mg/kg. Symptoms of overdose include nausea, vomiting, and weight loss.

Active Ingredient/Synonyms

[(R*,S*)-2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol | alpha-2-Piperidinyl-2,8-bis(trifluoromethyl)-4-quinolinemethanol | Mefloquin | Mefloquina | Méfloquine | Mefloquine | Mefloquinum | Mefloquine |

Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.


  1. Health Science Authority of Singapore - Reclassified POM
  2. Drugbank