Worming - can I use 2 wormers?

[Girlracer]

This will probably sound like a silly question but here it goes.

Basically I bought Saph Eqvalan Duo, but my boss also got me equitape for her. As far as I can tell Eqvalan doesn't cover tapeworm so can I use the two together or should I wait a bit between the 2?

 

[Faithkat]

Eqvalan Duo does tapeworm as well.

copied and pasted :
Eqvalan Duo combines two ingredients: ivermectin - to control all the common roundworms and bots plus praziquantel to control tapeworms. This is an alternative to double doses or multiple treatments and takes some of the complication out of worming programmes. A single dose of Eqvalan Duo every eight to ten weeks can control all major species of equine parasite. Eqvalan Duo is licensed to control more species and stages of equine parasite than any other equine wormer on the market. Eqvalan Duo can be used (AFTER THE FIRST 3 MONTHS) in pregnant mares