Pharmacist- Know your medicine

20/04/2026

regulatory affairs a glance

20/04/2026

The ultimate "swipe right" of the medical world. 🧬 Ever wondered what actually makes your immune system wake up and choose violence? It’s all about the Immunogens.
Check out the slides to see why size actually does matter (in microbiology, anyway) and how vaccines use these "drama starters" to keep you safe! 🛡️

20/04/2026

New topic
Unraveling Immunogen: Your Body’s Defense Activator.

20/04/2026

Solid fat index (SFI) can be used to recognize _______
of the total base.
(a) Melting range
(b) Hardness
(c) Amount of crystalline fat
(d) All are true

20/04/2026

Creaming in emulsions is governed by ____.
(a) Gay–Lussacs law
(b) Newton’s law law
(c) Stoke’s law
(d) Charles’ law

20/04/2026

Depilatories are substances which:

(a) Removes hair without removing skin

(b) Moisturizes the skin

(c) Imparts colour to the hair

(d) Are used to held the hair in the position

20/04/2026

Antoniff’s rule is applicable to:

(a) Highly polar liquids against water

(b) Nonpolar liquids against water

(c) Polar liquid against other immiscible liquids

(d) Slightly polar liquids against water

20/04/2026

Here are the most common problems faced in an HPLC system and how to troubleshoot them 🔬👇

---

⚠️ Common HPLC Problems & Troubleshooting

1. High Back Pressure 🚧

Possible causes

Blocked column

Dirty mobile phase

Blocked inline filter

Precipitated buffer salts

Troubleshooting

Flush column with strong solvent (e.g., high % organic)

Replace guard column or inline filter

Filter and degas mobile phase (0.45 µm or 0.22 µm)

Check tubing for blockage

---

2. Low Pressure 📉

Possible causes

Leak in system

Pump seal worn out

Empty solvent reservoir

Air in pump

Troubleshooting

Check for leaks in fittings

Prime the pump properly

Replace pump seals

Ensure solvent bottle has enough mobile phase

---

3. Baseline Noise 🔊

Possible causes

Air bubbles in detector

Dirty flow cell

Poor degassing

Contaminated mobile phase

Troubleshooting

Degas mobile phase (sonication or helium sparging)

Clean detector flow cell

Purge detector

Use fresh solvents

---

4. Baseline Drift 📈

Possible causes

Temperature fluctuations

Mobile phase composition change

Column not equilibrated

Detector lamp aging

Troubleshooting

Allow system to equilibrate (20–30 min)

Maintain constant column temperature

Prepare fresh mobile phase

Check detector lamp intensity

---

5. Peak Tailing 🧪➡️

Possible causes

Column contamination

Secondary interactions

Incorrect pH

Dead volume in fittings

Troubleshooting

Flush column with strong solvent

Adjust mobile phase pH

Replace column if old

Tighten fittings properly

---

6. Peak Fronting ⬅️🧪

Possible causes

Column overload

Injection volume too high

Sample solvent stronger than mobile phase

Troubleshooting

Reduce injection volume

Dilute sample

Match sample solvent with mobile phase

---

7. No Peaks Detected ❌

Possible causes

Wrong wavelength

No injection

Detector off

Sample degradation

20/04/2026

🧑‍⚕️ What Regulatory Affairs Professionals Do
They act as the bridge between pharmaceutical companies and regulatory authorities like:
U.S. Food and Drug Administration (USA)
European Medicines Agency (Europe)
Central Drugs Standard Control Organization (India)
World Health Organization (global guidance)
Their job is to ensure that medicines are safe, effective, and compliant with regulations.
📅 A Typical Day
A regulatory affairs professional may:
Review drug formulation and manufacturing data 📄
Prepare submission dossiers (like CTD/eCTD)
Communicate with regulatory agencies ✉️
Check labeling and packaging compliance 🏷️
Monitor regulatory updates and guideline changes 🔎
Coordinate with R&D, QA, QC, and production teams 🤝
📂 Key Responsibilities
1. Drug Submission & Approval
Preparing applications for new drugs, generics, or variations
Filing documents like ANDA, NDA, or DMF
2. Compliance Management
Ensuring products follow GMP, GLP, and GCP
Updating documentation when regulations change
3. Lifecycle Management
Handling post-approval changes
Renewals, variations, and line extensions
4. Regulatory Intelligence
Tracking new guidelines from agencies
Advising company strategy
🧠 Skills Required
Strong knowledge of pharmaceutics 💊
Attention to detail 🔍
Good writing and documentation skills ✍️
Understanding of global regulations 🌍
Communication and coordination skills 🗣️
⏰ Work-Life Balance
Usually 9–6 office hours (better than production shifts)
Busy during submission deadlines ⏳
Less physical stress, more mental focus
💼 Career Path
Typical progression:
Regulatory Affairs Executive
Senior RA Executive
Regulatory Affairs Manager
Associate Director
Director / Global Regulatory Lead 🚀
You can work in:
Pharmaceutical companies
CROs
Regulatory consulting firms
Medical device companies
Biotech companies
💰 Salary (Approx. in India)
Fresher: ₹3–5 LPA
3–5 years: ₹6–10 LPA
8+ years: ₹12–25 LPA+
Senior leadership: ₹30 LPA+ (large MNCs)
👍 Pros
Stable career 📈
Global op

19/04/2026