• Active Ingredients:
Ivermectin 272mcg
Pyrantel (as pamoate) 227mg
  • Excipients:
Magnesium stearate 3.5mg
Lactose 84mg
Starch Add to 1 tablet



For  large size dogs weighing from 23 - 45 kgs.

For use in dogs to prevent canine heartworm disease by eliminating the tissue stage of heartworm larvae (Dirofilaria immitis) for a month (30 days) after infection and for the treatment and control of ascarids (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala, Ancylostoma braziliense).


  • Monthly oral administration of 1 tablet for dogs weighing from 23 - 45kgs.
  • Can be given by hand or added intact tablet to a small amount of dog food.
  • HEARTWORM SHIELD L is recommended for dogs 6 weeks of age and older, treatment and control of ascarids and hookworms is best achieved by administering 1 tablet every two weeks.


  • All dogs must be tested for existing heartworm infection prior to starting treatment with HEARTWORM SHIELD L which is not effective against adult D.immitis. Infected dogs should be treated to remove adult heartworms and microfilariae prior to initiating treatment.


  • Vomiting or diarrhea within 24 hours of dosing was rarely observed.
  • The following reactions have been reported: Depression, vomiting, anorexia, diarrhea, mydriasis, ataxia, staggering, convulsions and hypersalivation.

STORAGE:    Store in dark and cool place, protect from light.

SHELF-LIFE:    36 months.

PRESENTATION:  1 box containing 10 blister tablets.