India protocol for use as prophylaxis is described here: https://www.thecompleteguidetohealth.com/ivermectinprophylaxis.html
The FLCCC Alliance protocol for use as prophylaxis is described here: https://covid19criticalcare.com/wp-content/uploads/2020/11/FLCCC-Alliance-I-MASKplus-Protocol-ENGLISH.pdf
India protocol for use as prophylaxis is described here:
https://www.thecompleteguidetohealth.com/ivermectinprophylaxis.html
The FLCCC Alliance protocol for use as prophylaxis is described here:
https://covid19criticalcare.com/wp-content/uploads/2020/11/FLCCC-Alliance-I-MASKplus-Protocol-ENGLISH.pdf
(With clickable links, for those who may need, or want, to see.)
Once/week is what our doc recommended.