Adil Adil Bro, you will should do at least 3-4 things:
1. Get in touch with people from your own field for guidance. Contacts from this relevant field will be able to guide you on how to look for jobs or might refer you for a job. I might know a couple of guys who are in D Pharmacy field. If you like I can get you in touch with them. Similarly you can ask all your friends/relatives as well. Someone will know someone from the field.
2. Check all available job portals like Rozee.pk, facebook groups, also check international portals like indeed.com, glassdoor.com, etc. Also check job postings in newspapers.
3. You should visit pharmacies or companies in person in your area/city. Ask them for job vacancies and drop your CV with them.
4. If you don't have prior experience, Initially you might offer them to start as an internee for little compensation.