Knowing how these medications work is only half the job. Here’s what actually happens once you start one, what to watch for, and how to pick between them.

What Side Effects Should You Expect?

Mostly gastrointestinal ones. Nausea, vomiting, constipation, diarrhoea, and general digestive discomfort are the most commonly reported effects with GLP-1 therapies. For a lot of people these ease up after the first few weeks. For others, more serious effects can show up, which is exactly why your provider needs to walk through the risks before you start, not after. Tell them about every other medication, supplement, and past drug reaction you’ve had. All of it matters here.

Are These Safe for Everyone?

No. Straight up. These require real medical assessment and ongoing monitoring, not a same-day online purchase from a seller you found through a DM.

The WHO has explicitly flagged the problem of people sourcing GLP-1 medications outside approved channels, through informal online sellers, without any medical oversight. Regulated distribution and proper prescribing aren’t red tape, they’re what keeps this safe. These medications also aren’t recommended during pregnancy. Your provider decides whether one fits you and what precautions apply.

Do They Replace Diet and Exercise?

No, and anyone implying otherwise is selling you something. Medication is one piece of the plan. The WHO specifically recommends pairing GLP-1 therapies with healthy eating, physical activity, and ongoing support from a healthcare professional. Appetite suppression alone doesn’t fix the behavioural and nutritional patterns that led to weight gain in the first place. A real plan addresses all of it.

What Happens When You Stop?

Weight management doesn’t end the moment you stop injecting. Some people regain weight after discontinuing treatment, that’s documented. NIDDK notes that keeping up healthy eating and activity habits can soften that regain. Whether to continue, adjust, or stop your medication is a conversation for your provider, not something to decide solo based on how you’re feeling that week.

So, Which One Is Actually Right for You?

There isn’t a single “best” injection. It comes down to your weight and health history, whether diabetes or another related condition is in the picture, your actual goals, what else you’re taking, the side effects you can tolerate, cost, availability, and how your specific body responds.

Skip the social media recommendation. Talk to someone qualified who can weigh all of that together, for you specifically.

Considering Weight-Loss Injections?

If you’ve genuinely changed your diet and lifestyle and the scale still isn’t moving, it might be time to talk to a professional about medical weight management.

At Botaderm, that conversation starts with a consultation, your health, your history, your goals, before anyone talks treatment plans.

Book a medical weight-management consultation and find out whether injectable weight management actually makes sense for you.

Related: Weight-Loss Injections: How They Work and Who May Be Eligible · Ozempic for Weight Loss: What You Need to Know