Hi nigerian 2009,
Try and go on the websites for cvs ,rite aid and walgreens and check for the details of their international recruiters .The nabp website is the only website you can check your licensure details .Also you might benefit from referral from your old school mates/colleagues currently practising in the states why I am saying this is that the H1b filling is competitive sometimes and it might be an easier way.
Send faxes to nabp stating that your recruiter needs it urgently to faciltate your employment .I can assure you it will work
Also check out walmart,kroger website they also recruit as well.
The recruiter for rite aid is janette vietze.and her e mail is on the rite aid website.
All the best
Rxsoon